1146781870 has 16 divisors (see below), whose sum is σ = 2222992800. Its totient is φ = 423427104.

The previous prime is 1146781861. The next prime is 1146781873. The reversal of 1146781870 is 781876411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146781873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4410570 + ... + 4410829.

It is an arithmetic number, because the mean of its divisors is an integer number (138937050).

Almost surely, 2^1146781870 is an apocalyptic number.

1146781870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1146781870 is a deficient number, since it is larger than the sum of its proper divisors (1076210930).

1146781870 is a wasteful number, since it uses less digits than its factorization.

1146781870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821419.

The product of its (nonzero) digits is 75264, while the sum is 43.

The square root of 1146781870 is about 33864.1679360353. The cubic root of 1146781870 is about 1046.7113644527.

The spelling of 1146781870 in words is "one billion, one hundred forty-six million, seven hundred eighty-one thousand, eight hundred seventy".