7123731516 has 48 divisors (see below), whose sum is σ = 20147930880. Its totient is φ = 2158706160.

The previous prime is 7123731487. The next prime is 7123731523. The reversal of 7123731516 is 6151373217.

7123731516 is a `hidden beast` number, since 71 + 2 + 3 + 73 + 1 + 516 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2997016 + ... + 2999391.

It is an arithmetic number, because the mean of its divisors is an integer number (419748560).

Almost surely, 2^7123731516 is an apocalyptic number.

It is an amenable number.

7123731516 is an abundant number, since it is smaller than the sum of its proper divisors (13024199364).

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

7123731516 is a wasteful number, since it uses less digits than its factorization.

7123731516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5996431 (or 5996423 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 7123731516 is about 84402.2008954743. The cubic root of 7123731516 is about 1924.1363655953.

The spelling of 7123731516 in words is "seven billion, one hundred twenty-three million, seven hundred thirty-one thousand, five hundred sixteen".