139874834450 has 48 divisors (see below), whose sum is σ = 280339515456. Its totient is φ = 51616699200.

The previous prime is 139874834431. The next prime is 139874834471. The reversal of 139874834450 is 54438478931.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1098605 + ... + 1219295.

It is an arithmetic number, because the mean of its divisors is an integer number (5840406572).

Almost surely, 2^139874834450 is an apocalyptic number.

139874834450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139874834450 is an abundant number, since it is smaller than the sum of its proper divisors (140464681006).

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

139874834450 is a wasteful number, since it uses less digits than its factorization.

139874834450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122499 (or 122494 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 139874834450 in words is "one hundred thirty-nine billion, eight hundred seventy-four million, eight hundred thirty-four thousand, four hundred fifty".