139400653854 has 128 divisors (see below), whose sum is σ = 373086508032. Its totient is φ = 33611120640.

The previous prime is 139400653849. The next prime is 139400653891. The reversal of 139400653854 is 458356004931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 451774 + ... + 694910.

It is an arithmetic number, because the mean of its divisors is an integer number (2914738344).

Almost surely, 2^139400653854 is an apocalyptic number.

139400653854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139400653854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186543254016).

139400653854 is an abundant number, since it is smaller than the sum of its proper divisors (233685854178).

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

139400653854 is a wasteful number, since it uses less digits than its factorization.

139400653854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243250.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 139400653854 in words is "one hundred thirty-nine billion, four hundred million, six hundred fifty-three thousand, eight hundred fifty-four".