70870887770879 has 32 divisors (see below), whose sum is σ = 82172204083200. Its totient is φ = 59866670972160.

The previous prime is 70870887770861. The next prime is 70870887770887. The reversal of 70870887770879 is 97807778807807.

It is a cyclic number.

It is not a de Polignac number, because 70870887770879 - 2²⁸ = 70870619335423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70870887770797 and 70870887770806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70870887970879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3291869387 + ... + 3291890915.

It is an arithmetic number, because the mean of its divisors is an integer number (2567881377600).

Almost surely, 2^{70870887770879} is an apocalyptic number.

70870887770879 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

70870887770879 is a deficient number, since it is larger than the sum of its proper divisors (11301316312321).

70870887770879 is a wasteful number, since it uses less digits than its factorization.

70870887770879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32343.

The product of its (nonzero) digits is 4337012736, while the sum is 83.

The spelling of 70870887770879 in words is "seventy trillion, eight hundred seventy billion, eight hundred eighty-seven million, seven hundred seventy thousand, eight hundred seventy-nine".