70812640992 has 48 divisors (see below), whose sum is σ = 189838156032. Its totient is φ = 23101994880.

The previous prime is 70812640991. The next prime is 70812641021. The reversal of 70812640992 is 29904621807.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70812640991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7842634 + ... + 7851657.

It is an arithmetic number, because the mean of its divisors is an integer number (3954961584).

Almost surely, 2^70812640992 is an apocalyptic number.

It is an amenable number.

70812640992 is an abundant number, since it is smaller than the sum of its proper divisors (119025515040).

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

70812640992 is a wasteful number, since it uses less digits than its factorization.

70812640992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15694351 (or 15694343 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 70812640992 in words is "seventy billion, eight hundred twelve million, six hundred forty thousand, nine hundred ninety-two".