70782369988 has 24 divisors (see below), whose sum is σ = 138425835744. Its totient is φ = 31389076800.

The previous prime is 70782369979. The next prime is 70782369989. The reversal of 70782369988 is 88996328707.

It is a super-2 number, since 2×70782369988² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70782369989) 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, 19616370 + ... + 19619977.

It is an arithmetic number, because the mean of its divisors is an integer number (5767743156).

Almost surely, 2^70782369988 is an apocalyptic number.

It is an amenable number.

70782369988 is a deficient number, since it is larger than the sum of its proper divisors (67643465756).

70782369988 is a wasteful number, since it uses less digits than its factorization.

70782369988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39236403 (or 39236401 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 67.

The spelling of 70782369988 in words is "seventy billion, seven hundred eighty-two million, three hundred sixty-nine thousand, nine hundred eighty-eight".