77470384401 has 24 divisors (see below), whose sum is σ = 114942534824. Its totient is φ = 50243846400.

The previous prime is 77470384393. The next prime is 77470384469. The reversal of 77470384401 is 10448307477.

It can be written as a sum of positive squares in 4 ways, for example, as 59475503376 + 17994881025 = 243876^2 + 134145^2 .

It is not a de Polignac number, because 77470384401 - 2³ = 77470384393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77470384301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3285285 + ... + 3308781.

Almost surely, 2^77470384401 is an apocalyptic number.

It is an amenable number.

77470384401 is a deficient number, since it is larger than the sum of its proper divisors (37472150423).

77470384401 is a wasteful number, since it uses less digits than its factorization.

77470384401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33441 (or 33438 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 77470384401 in words is "seventy-seven billion, four hundred seventy million, three hundred eighty-four thousand, four hundred one".