70523732391 has 32 divisors (see below), whose sum is σ = 113713152000. Its totient is φ = 37978333920.

The previous prime is 70523732387. The next prime is 70523732417. The reversal of 70523732391 is 19323732507.

It is not a de Polignac number, because 70523732391 - 2² = 70523732387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70523732341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 386491 + ... + 538908.

It is an arithmetic number, because the mean of its divisors is an integer number (3553536000).

Almost surely, 2^70523732391 is an apocalyptic number.

70523732391 is a deficient number, since it is larger than the sum of its proper divisors (43189419609).

70523732391 is a wasteful number, since it uses less digits than its factorization.

70523732391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925619.

The product of its (nonzero) digits is 238140, while the sum is 42.

The spelling of 70523732391 in words is "seventy billion, five hundred twenty-three million, seven hundred thirty-two thousand, three hundred ninety-one".