100157788277 has 2 divisors, whose sum is σ = 100157788278. Its totient is φ = 100157788276.

The previous prime is 100157788259. The next prime is 100157788333. The reversal of 100157788277 is 772887751001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97288471921 + 2869316356 = 311911^2 + 53566^2 .

It is a cyclic number.

It is not a de Polignac number, because 100157788277 - 2²² = 100153593973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100157787277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50078894138 + 50078894139.

It is an arithmetic number, because the mean of its divisors is an integer number (50078894139).

Almost surely, 2^100157788277 is an apocalyptic number.

It is an amenable number.

100157788277 is a deficient number, since it is larger than the sum of its proper divisors (1).

100157788277 is an equidigital number, since it uses as much as digits as its factorization.

100157788277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536640, while the sum is 53.

The spelling of 100157788277 in words is "one hundred billion, one hundred fifty-seven million, seven hundred eighty-eight thousand, two hundred seventy-seven".