70404978311 has 4 divisors (see below), whose sum is σ = 72042303432. Its totient is φ = 68767653192.

The previous prime is 70404978283. The next prime is 70404978419. The reversal of 70404978311 is 11387940407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11387940407 = 12653 ⋅900019.

It is a cyclic number.

It is not a de Polignac number, because 70404978311 - 2²² = 70400784007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70404978011) 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, 818662496 + ... + 818662581.

It is an arithmetic number, because the mean of its divisors is an integer number (18010575858).

Almost surely, 2^70404978311 is an apocalyptic number.

70404978311 is a deficient number, since it is larger than the sum of its proper divisors (1637325121).

70404978311 is a wasteful number, since it uses less digits than its factorization.

70404978311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637325120.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 70404978311 in words is "seventy billion, four hundred four million, nine hundred seventy-eight thousand, three hundred eleven".