70813377911 has 4 divisors (see below), whose sum is σ = 70820982792. Its totient is φ = 70805773032.

The previous prime is 70813377907. The next prime is 70813377953. The reversal of 70813377911 is 11977331807.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70813377911 - 2² = 70813377907 is a prime.

It is a super-2 number, since 2×70813377911² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70813377611) 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, 3788456 + ... + 3807101.

It is an arithmetic number, because the mean of its divisors is an integer number (17705245698).

Almost surely, 2^70813377911 is an apocalyptic number.

70813377911 is a deficient number, since it is larger than the sum of its proper divisors (7604881).

70813377911 is an equidigital number, since it uses as much as digits as its factorization.

70813377911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604880.

The product of its (nonzero) digits is 222264, while the sum is 47.

The spelling of 70813377911 in words is "seventy billion, eight hundred thirteen million, three hundred seventy-seven thousand, nine hundred eleven".