139816719402 has 64 divisors (see below), whose sum is σ = 303099439104. Its totient is φ = 42825404160.

The previous prime is 139816719401. The next prime is 139816719409. The reversal of 139816719402 is 204917618931.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (139816719401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12832377 + ... + 12843267.

It is an arithmetic number, because the mean of its divisors is an integer number (4735928736).

Almost surely, 2^139816719402 is an apocalyptic number.

139816719402 is an abundant number, since it is smaller than the sum of its proper divisors (163282719702).

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

139816719402 is a wasteful number, since it uses less digits than its factorization.

139816719402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883.

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 139816719402 in words is "one hundred thirty-nine billion, eight hundred sixteen million, seven hundred nineteen thousand, four hundred two".