772238636401 has 12 divisors (see below), whose sum is σ = 806336301888. Its totient is φ = 738184779464.

The previous prime is 772238636387. The next prime is 772238636419. The reversal of 772238636401 is 104636832277.

772238636401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 772238636401 - 2⁵ = 772238636369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772238636441) 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, 76431516 + ... + 76441618.

It is an arithmetic number, because the mean of its divisors is an integer number (67194691824).

Almost surely, 2^772238636401 is an apocalyptic number.

It is an amenable number.

772238636401 is a deficient number, since it is larger than the sum of its proper divisors (34097665487).

772238636401 is an equidigital number, since it uses as much as digits as its factorization.

772238636401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13772 (or 11949 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 772238636401 in words is "seven hundred seventy-two billion, two hundred thirty-eight million, six hundred thirty-six thousand, four hundred one".