100278617142 has 24 divisors (see below), whose sum is σ = 220447209528. Its totient is φ = 30387459520.

The previous prime is 100278617113. The next prime is 100278617147. The reversal of 100278617142 is 241716872001.

It is a self number, because there is not a number n which added to its sum of digits gives 100278617142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100278617147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69061683 + ... + 69063134.

It is an arithmetic number, because the mean of its divisors is an integer number (9185300397).

Almost surely, 2^100278617142 is an apocalyptic number.

100278617142 is an abundant number, since it is smaller than the sum of its proper divisors (120168592386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100278617142 is a wasteful number, since it uses less digits than its factorization.

100278617142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138124844 (or 138124833 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The spelling of 100278617142 in words is "one hundred billion, two hundred seventy-eight million, six hundred seventeen thousand, one hundred forty-two".