149574720537 has 24 divisors (see below), whose sum is σ = 245941046208. Its totient is φ = 86709981600.

The previous prime is 149574720487. The next prime is 149574720569. The reversal of 149574720537 is 735027475941.

149574720537 is a `hidden beast` number, since 1 + 49 + 5 + 7 + 47 + 20 + 537 = 666.

It is not a de Polignac number, because 149574720537 - 2⁷ = 149574720409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149574790537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32842414 + ... + 32846967.

It is an arithmetic number, because the mean of its divisors is an integer number (10247543592).

Almost surely, 2^149574720537 is an apocalyptic number.

It is an amenable number.

149574720537 is a deficient number, since it is larger than the sum of its proper divisors (96366325671).

149574720537 is a wasteful number, since it uses less digits than its factorization.

149574720537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65689421 (or 65689418 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The spelling of 149574720537 in words is "one hundred forty-nine billion, five hundred seventy-four million, seven hundred twenty thousand, five hundred thirty-seven".