100402049887 has 2 divisors, whose sum is σ = 100402049888. Its totient is φ = 100402049886.

The previous prime is 100402049873. The next prime is 100402049927. The reversal of 100402049887 is 788940204001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100402049887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100402049837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50201024943 + 50201024944.

It is an arithmetic number, because the mean of its divisors is an integer number (50201024944).

Almost surely, 2^100402049887 is an apocalyptic number.

100402049887 is a deficient number, since it is larger than the sum of its proper divisors (1).

100402049887 is an equidigital number, since it uses as much as digits as its factorization.

100402049887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 100402049887 in words is "one hundred billion, four hundred two million, forty-nine thousand, eight hundred eighty-seven".