70878934767 has 4 divisors (see below), whose sum is σ = 94505246360. Its totient is φ = 47252623176.

The previous prime is 70878934673. The next prime is 70878934799. The reversal of 70878934767 is 76743987807.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 70878934767 - 2²² = 70874740463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70878934698 and 70878934707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878934067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11813155792 + ... + 11813155797.

It is an arithmetic number, because the mean of its divisors is an integer number (23626311590).

Almost surely, 2^70878934767 is an apocalyptic number.

70878934767 is a deficient number, since it is larger than the sum of its proper divisors (23626311593).

70878934767 is a wasteful number, since it uses less digits than its factorization.

70878934767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23626311592.

The product of its (nonzero) digits is 99574272, while the sum is 66.

The spelling of 70878934767 in words is "seventy billion, eight hundred seventy-eight million, nine hundred thirty-four thousand, seven hundred sixty-seven".