77404472735401 has 96 divisors (see below), whose sum is σ = 96857716032000. Its totient is φ = 61457923473408.

The previous prime is 77404472735389. The next prime is 77404472735411. The reversal of 77404472735401 is 10453727440477.

It is not a de Polignac number, because 77404472735401 - 2¹⁵ = 77404472702633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77404472735411) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9092498121 + ... + 9092506633.

It is an arithmetic number, because the mean of its divisors is an integer number (1008934542000).

Almost surely, 2^{77404472735401} is an apocalyptic number.

It is an amenable number.

77404472735401 is a deficient number, since it is larger than the sum of its proper divisors (19453243296599).

77404472735401 is a wasteful number, since it uses less digits than its factorization.

77404472735401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9311 (or 9304 counting only the distinct ones).

The product of its (nonzero) digits is 18439680, while the sum is 55.

The spelling of 77404472735401 in words is "seventy-seven trillion, four hundred four billion, four hundred seventy-two million, seven hundred thirty-five thousand, four hundred one".