139415451630 has 64 divisors (see below), whose sum is σ = 411811803648. Its totient is φ = 29415127680.

The previous prime is 139415451577. The next prime is 139415451647. The reversal of 139415451630 is 36154514931.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25531236 + ... + 25536695.

It is an arithmetic number, because the mean of its divisors is an integer number (6434559432).

Almost surely, 2^139415451630 is an apocalyptic number.

139415451630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139415451630 is an abundant number, since it is smaller than the sum of its proper divisors (272396352018).

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

139415451630 is a wasteful number, since it uses less digits than its factorization.

139415451630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51067961.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 139415451630 in words is "one hundred thirty-nine billion, four hundred fifteen million, four hundred fifty-one thousand, six hundred thirty".