70851557952 has 140 divisors (see below), whose sum is σ = 240030081280. Its totient is φ = 20243291904.

The previous prime is 70851557911. The next prime is 70851557971. The reversal of 70851557952 is 25975515807.

70851557952 is a `hidden beast` number, since 7 + 0 + 8 + 5 + 15 + 579 + 52 = 666.

It is a super-2 number, since 2×70851557952² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 939952 + ... + 1012527.

Almost surely, 2^70851557952 is an apocalyptic number.

70851557952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70851557952 is an abundant number, since it is smaller than the sum of its proper divisors (169178523328).

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

70851557952 is a wasteful number, since it uses less digits than its factorization.

70851557952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952510 (or 1952491 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 54.

The spelling of 70851557952 in words is "seventy billion, eight hundred fifty-one million, five hundred fifty-seven thousand, nine hundred fifty-two".