149693314868 has 6 divisors (see below), whose sum is σ = 261963301026. Its totient is φ = 74846657432.

The previous prime is 149693314831. The next prime is 149693314919. The reversal of 149693314868 is 868413396941.

It can be written as a sum of positive squares in only one way, i.e., 121620982564 + 28072332304 = 348742^2 + 167548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 149693314868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18711664355 + ... + 18711664362.

It is an arithmetic number, because the mean of its divisors is an integer number (43660550171).

Almost surely, 2^149693314868 is an apocalyptic number.

It is an amenable number.

149693314868 is a deficient number, since it is larger than the sum of its proper divisors (112269986158).

149693314868 is a wasteful number, since it uses less digits than its factorization.

149693314868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37423328721 (or 37423328719 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 62.

The spelling of 149693314868 in words is "one hundred forty-nine billion, six hundred ninety-three million, three hundred fourteen thousand, eight hundred sixty-eight".