70352857523 has 16 divisors (see below), whose sum is σ = 77555619456. Its totient is φ = 63412346880.

The previous prime is 70352857499. The next prime is 70352857529. The reversal of 70352857523 is 32575825307.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70352857523 - 2¹⁶ = 70352791987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70352857529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131603 + ... + 397523.

It is an arithmetic number, because the mean of its divisors is an integer number (4847226216).

Almost surely, 2^70352857523 is an apocalyptic number.

70352857523 is a deficient number, since it is larger than the sum of its proper divisors (7202761933).

70352857523 is a wasteful number, since it uses less digits than its factorization.

70352857523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266414.

The product of its (nonzero) digits is 1764000, while the sum is 47.

The spelling of 70352857523 in words is "seventy billion, three hundred fifty-two million, eight hundred fifty-seven thousand, five hundred twenty-three".