977545651533 has 16 divisors (see below), whose sum is σ = 1422295343616. Its totient is φ = 592280760240.

The previous prime is 977545651513. The next prime is 977545651541. The reversal of 977545651533 is 335156545779.

977545651533 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 977545651533 - 2⁶ = 977545651469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977545651513) 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, 4162735 + ... + 4391292.

It is an arithmetic number, because the mean of its divisors is an integer number (88893458976).

Almost surely, 2^977545651533 is an apocalyptic number.

It is an amenable number.

977545651533 is a deficient number, since it is larger than the sum of its proper divisors (444749692083).

977545651533 is a wasteful number, since it uses less digits than its factorization.

977545651533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557504.

The product of its digits is 59535000, while the sum is 60.

The spelling of 977545651533 in words is "nine hundred seventy-seven billion, five hundred forty-five million, six hundred fifty-one thousand, five hundred thirty-three".