70740400077 has 6 divisors (see below), whose sum is σ = 102180577902. Its totient is φ = 47160266712.

The previous prime is 70740400067. The next prime is 70740400079. The reversal of 70740400077 is 77000404707.

It can be written as a sum of positive squares in only one way, i.e., 67992648516 + 2747751561 = 260754^2 + 52419^2 .

It is not a de Polignac number, because 70740400077 - 2⁴ = 70740400061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70740400079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3930022218 + ... + 3930022235.

It is an arithmetic number, because the mean of its divisors is an integer number (17030096317).

Almost surely, 2^70740400077 is an apocalyptic number.

It is an amenable number.

70740400077 is a deficient number, since it is larger than the sum of its proper divisors (31440177825).

70740400077 is a wasteful number, since it uses less digits than its factorization.

70740400077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860044459 (or 7860044456 counting only the distinct ones).

The product of its (nonzero) digits is 38416, while the sum is 36.

The spelling of 70740400077 in words is "seventy billion, seven hundred forty million, four hundred thousand, seventy-seven".