100649856395 has 24 divisors (see below), whose sum is σ = 132840397872. Its totient is φ = 73154459840.

The previous prime is 100649856389. The next prime is 100649856401. The reversal of 100649856395 is 593658946001.

It is an interprime number because it is at equal distance from previous prime (100649856389) and next prime (100649856401).

It is not a de Polignac number, because 100649856395 - 2³⁰ = 99576114571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100649856395.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 939572 + ... + 1041198.

It is an arithmetic number, because the mean of its divisors is an integer number (5535016578).

Almost surely, 2^100649856395 is an apocalyptic number.

100649856395 is a deficient number, since it is larger than the sum of its proper divisors (32190541477).

100649856395 is a wasteful number, since it uses less digits than its factorization.

100649856395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103291 (or 103280 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 100649856395 in words is "one hundred billion, six hundred forty-nine million, eight hundred fifty-six thousand, three hundred ninety-five".