70523732390 has 8 divisors (see below), whose sum is σ = 126942718320. Its totient is φ = 28209492952.

The previous prime is 70523732387. The next prime is 70523732417. The reversal of 70523732390 is 9323732507.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×70523732390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3526186610 + ... + 3526186629.

It is an arithmetic number, because the mean of its divisors is an integer number (15867839790).

Almost surely, 2^70523732390 is an apocalyptic number.

70523732390 is a deficient number, since it is larger than the sum of its proper divisors (56418985930).

70523732390 is a wasteful number, since it uses less digits than its factorization.

70523732390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052373246.

The product of its (nonzero) digits is 238140, while the sum is 41.

The spelling of 70523732390 in words is "seventy billion, five hundred twenty-three million, seven hundred thirty-two thousand, three hundred ninety".