74646074401 has 16 divisors (see below), whose sum is σ = 81257253840. Its totient is φ = 68293969920.

The previous prime is 74646074381. The next prime is 74646074411. The reversal of 74646074401 is 10447064647.

It can be written as a sum of positive squares in 8 ways, for example, as 15899949025 + 58746125376 = 126095^2 + 242376^2 .

It is a cyclic number.

It is not a de Polignac number, because 74646074401 - 2⁷ = 74646074273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74646074411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246 + ... + 386383.

It is an arithmetic number, because the mean of its divisors is an integer number (5078578365).

Almost surely, 2^74646074401 is an apocalyptic number.

It is an amenable number.

74646074401 is a deficient number, since it is larger than the sum of its proper divisors (6611179439).

74646074401 is a wasteful number, since it uses less digits than its factorization.

74646074401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386964.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 74646074401 in words is "seventy-four billion, six hundred forty-six million, seventy-four thousand, four hundred one".