149912862544 has 20 divisors (see below), whose sum is σ = 290462628820. Its totient is φ = 74954764800.

The previous prime is 149912862503. The next prime is 149912862587. The reversal of 149912862544 is 445268219941.

It can be written as a sum of positive squares in 2 ways, for example, as 138890382400 + 11022480144 = 372680^2 + 104988^2 .

It is a super-2 number, since 2×149912862544² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979912 + ... + 1122520.

It is an arithmetic number, because the mean of its divisors is an integer number (14523131441).

Almost surely, 2^149912862544 is an apocalyptic number.

It is an amenable number.

149912862544 is a deficient number, since it is larger than the sum of its proper divisors (140549766276).

149912862544 is a wasteful number, since it uses less digits than its factorization.

149912862544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208318 (or 208312 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 55.

The spelling of 149912862544 in words is "one hundred forty-nine billion, nine hundred twelve million, eight hundred sixty-two thousand, five hundred forty-four".