70070770777 has 4 divisors (see below), whose sum is σ = 80080880896. Its totient is φ = 60060660660.

The previous prime is 70070770753. The next prime is 70070770807. The reversal of 70070770777 is 77707707007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-70070770777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70070770777.

It is not an unprimeable number, because it can be changed into a prime (70070770277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005055049 + ... + 5005055062.

It is an arithmetic number, because the mean of its divisors is an integer number (20020220224).

Almost surely, 2^70070770777 is an apocalyptic number.

It is an amenable number.

70070770777 is a deficient number, since it is larger than the sum of its proper divisors (10010110119).

70070770777 is a wasteful number, since it uses less digits than its factorization.

70070770777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010110118.

The product of its (nonzero) digits is 823543, while the sum is 49.

The spelling of 70070770777 in words is "seventy billion, seventy million, seven hundred seventy thousand, seven hundred seventy-seven".