70231775256 has 192 divisors, whose sum is σ = 205983180000. Its totient is φ = 21542381568.

The previous prime is 70231775239. The next prime is 70231775267. The reversal of 70231775256 is 65257713207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57144850 + ... + 57146078.

Almost surely, 2^70231775256 is an apocalyptic number.

70231775256 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70231775256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102991590000).

70231775256 is an abundant number, since it is smaller than the sum of its proper divisors (135751404744).

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

70231775256 is a wasteful number, since it uses less digits than its factorization.

70231775256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 70231775256 in words is "seventy billion, two hundred thirty-one million, seven hundred seventy-five thousand, two hundred fifty-six".