70437811077 has 12 divisors (see below), whose sum is σ = 101916840480. Its totient is φ = 46878539688.

The previous prime is 70437811069. The next prime is 70437811091. The reversal of 70437811077 is 77011873407.

70437811077 is a `hidden beast` number, since 70 + 437 + 81 + 1 + 0 + 77 = 666.

It is not a de Polignac number, because 70437811077 - 2³ = 70437811069 is a prime.

It is a super-2 number, since 2×70437811077² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70437811877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6661177 + ... + 6671742.

It is an arithmetic number, because the mean of its divisors is an integer number (8493070040).

Almost surely, 2^70437811077 is an apocalyptic number.

It is an amenable number.

70437811077 is a deficient number, since it is larger than the sum of its proper divisors (31479029403).

70437811077 is a wasteful number, since it uses less digits than its factorization.

70437811077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13333512 (or 13333509 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 70437811077 in words is "seventy billion, four hundred thirty-seven million, eight hundred eleven thousand, seventy-seven".