70957347840 has 880 divisors, whose sum is σ = 273066000768. Its totient is φ = 17576165376.

The previous prime is 70957347823. The next prime is 70957347841. The reversal of 70957347840 is 4874375907.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70957347841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 410157994 + ... + 410158166.

Almost surely, 2^70957347840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70957347840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136533000384).

70957347840 is an abundant number, since it is smaller than the sum of its proper divisors (202108652928).

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

70957347840 is a wasteful number, since it uses less digits than its factorization.

70957347840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 70957347840 in words is "seventy billion, nine hundred fifty-seven million, three hundred forty-seven thousand, eight hundred forty".