1375061868 has 18 divisors (see below), whose sum is σ = 3475850924. Its totient is φ = 458353944.

The previous prime is 1375061867. The next prime is 1375061917. The reversal of 1375061868 is 8681605731.

1375061868 is a `hidden beast` number, since 137 + 506 + 1 + 8 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1375061867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19098046 + ... + 19098117.

Almost surely, 2^1375061868 is an apocalyptic number.

1375061868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1375061868 is an abundant number, since it is smaller than the sum of its proper divisors (2100789056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375061868 is a wasteful number, since it uses less digits than its factorization.

1375061868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38196173 (or 38196168 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1375061868 is about 37081.8266540363. The cubic root of 1375061868 is about 1112.0067229982.

It can be divided in two parts, 1375061 and 868, that added together give a square (1375929 = 1173²).

The spelling of 1375061868 in words is "one billion, three hundred seventy-five million, sixty-one thousand, eight hundred sixty-eight".