137919651442 has 16 divisors (see below), whose sum is σ = 209984752512. Its totient is φ = 67926507040.

The previous prime is 137919651377. The next prime is 137919651491. The reversal of 137919651442 is 244156919731.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 137919651442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286918 + ... + 598465.

It is an arithmetic number, because the mean of its divisors is an integer number (13124047032).

Almost surely, 2^137919651442 is an apocalyptic number.

137919651442 is a deficient number, since it is larger than the sum of its proper divisors (72065101070).

137919651442 is a wasteful number, since it uses less digits than its factorization.

137919651442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886553.

The product of its digits is 1632960, while the sum is 52.

The spelling of 137919651442 in words is "one hundred thirty-seven billion, nine hundred nineteen million, six hundred fifty-one thousand, four hundred forty-two".