70785258432 has 112 divisors (see below), whose sum is σ = 214171694592. Its totient is φ = 20212024320.

The previous prime is 70785258431. The next prime is 70785258433. The reversal of 70785258432 is 23485258707.

It is an interprime number because it is at equal distance from previous prime (70785258431) and next prime (70785258433).

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×70785258432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70785258431) 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, 2313957 + ... + 2344347.

Almost surely, 2^70785258432 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 70785258432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107085847296).

70785258432 is an abundant number, since it is smaller than the sum of its proper divisors (143386436160).

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

70785258432 is a wasteful number, since it uses less digits than its factorization.

70785258432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32146 (or 32136 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 70785258432 in words is "seventy billion, seven hundred eighty-five million, two hundred fifty-eight thousand, four hundred thirty-two".