149317619790 has 32 divisors (see below), whose sum is σ = 358409138976. Its totient is φ = 39812826240.

The previous prime is 149317619753. The next prime is 149317619791. The reversal of 149317619790 is 97916713941.

It is a self number, because there is not a number n which added to its sum of digits gives 149317619790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149317619791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89257 + ... + 553716.

It is an arithmetic number, because the mean of its divisors is an integer number (11200285593).

Almost surely, 2^149317619790 is an apocalyptic number.

149317619790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149317619790 is an abundant number, since it is smaller than the sum of its proper divisors (209091519186).

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

149317619790 is a wasteful number, since it uses less digits than its factorization.

149317619790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650724.

The product of its (nonzero) digits is 2571912, while the sum is 57.

The spelling of 149317619790 in words is "one hundred forty-nine billion, three hundred seventeen million, six hundred nineteen thousand, seven hundred ninety".