101268781977 has 32 divisors (see below), whose sum is σ = 148597088256. Its totient is φ = 60836875200.

The previous prime is 101268781969. The next prime is 101268782003. The reversal of 101268781977 is 779187862101.

It is not a de Polignac number, because 101268781977 - 2³ = 101268781969 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (101268781277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1755363 + ... + 1812135.

It is an arithmetic number, because the mean of its divisors is an integer number (4643659008).

Almost surely, 2^101268781977 is an apocalyptic number.

It is an amenable number.

101268781977 is a deficient number, since it is larger than the sum of its proper divisors (47328306279).

101268781977 is a wasteful number, since it uses less digits than its factorization.

101268781977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57261.

The product of its (nonzero) digits is 2370816, while the sum is 57.

The spelling of 101268781977 in words is "one hundred one billion, two hundred sixty-eight million, seven hundred eighty-one thousand, nine hundred seventy-seven".