100378906564 has 24 divisors (see below), whose sum is σ = 181397131776. Its totient is φ = 48552360000.

The previous prime is 100378906561. The next prime is 100378906583. The reversal of 100378906564 is 465609873001.

It is not an unprimeable number, because it can be changed into a prime (100378906561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186864 + ... + 485464.

It is an arithmetic number, because the mean of its divisors is an integer number (7558213824).

Almost surely, 2^100378906564 is an apocalyptic number.

It is an amenable number.

100378906564 is a deficient number, since it is larger than the sum of its proper divisors (81018225212).

100378906564 is a wasteful number, since it uses less digits than its factorization.

100378906564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301347 (or 301345 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 100378906564 in words is "one hundred billion, three hundred seventy-eight million, nine hundred six thousand, five hundred sixty-four".