149861345923299 has 24 divisors (see below), whose sum is σ = 210893546695680. Its totient is φ = 94645533073392.

The previous prime is 149861345923249. The next prime is 149861345923301. The reversal of 149861345923299 is 992329543168941.

It is not a de Polignac number, because 149861345923299 - 2⁹ = 149861345922787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149861345923299.

It is not an unprimeable number, because it can be changed into a prime (149861345923249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24830674 + ... + 30270200.

It is an arithmetic number, because the mean of its divisors is an integer number (8787231112320).

Almost surely, 2^{149861345923299} is an apocalyptic number.

149861345923299 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

149861345923299 is a deficient number, since it is larger than the sum of its proper divisors (61032200772381).

149861345923299 is a wasteful number, since it uses less digits than its factorization.

149861345923299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465007 (or 5464988 counting only the distinct ones).

The product of its digits is 906992640, while the sum is 75.

The spelling of 149861345923299 in words is "one hundred forty-nine trillion, eight hundred sixty-one billion, three hundred forty-five million, nine hundred twenty-three thousand, two hundred ninety-nine".