109894971542 has 32 divisors (see below), whose sum is σ = 174810700800. Its totient is φ = 51722483040.

The previous prime is 109894971541. The next prime is 109894971553. The reversal of 109894971542 is 245179498901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109894971541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12628709 + ... + 12637407.

It is an arithmetic number, because the mean of its divisors is an integer number (5462834400).

Almost surely, 2^109894971542 is an apocalyptic number.

109894971542 is a deficient number, since it is larger than the sum of its proper divisors (64915729258).

109894971542 is a wasteful number, since it uses less digits than its factorization.

109894971542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14276.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 109894971542 in words is "one hundred nine billion, eight hundred ninety-four million, nine hundred seventy-one thousand, five hundred forty-two".