149917519679 has 8 divisors (see below), whose sum is σ = 150637441920. Its totient is φ = 149198023296.

The previous prime is 149917519627. The next prime is 149917519747. The reversal of 149917519679 is 976915719941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149917519679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149917510679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610859 + ... + 820355.

It is an arithmetic number, because the mean of its divisors is an integer number (18829680240).

Almost surely, 2^149917519679 is an apocalyptic number.

149917519679 is a deficient number, since it is larger than the sum of its proper divisors (719922241).

149917519679 is a wasteful number, since it uses less digits than its factorization.

149917519679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212929.

The product of its digits is 38578680, while the sum is 68.

The spelling of 149917519679 in words is "one hundred forty-nine billion, nine hundred seventeen million, five hundred nineteen thousand, six hundred seventy-nine".