137293538508 has 36 divisors (see below), whose sum is σ = 396625778640. Its totient is φ = 39226725216.

The previous prime is 137293538491. The next prime is 137293538539. The reversal of 137293538508 is 805835392731.

137293538508 is a `hidden beast` number, since 1 + 3 + 72 + 9 + 35 + 38 + 508 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272407563 + ... + 272408066.

It is an arithmetic number, because the mean of its divisors is an integer number (11017382740).

Almost surely, 2^137293538508 is an apocalyptic number.

137293538508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137293538508 is an abundant number, since it is smaller than the sum of its proper divisors (259332240132).

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

137293538508 is a wasteful number, since it uses less digits than its factorization.

137293538508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544815646 (or 544815641 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 137293538508 in words is "one hundred thirty-seven billion, two hundred ninety-three million, five hundred thirty-eight thousand, five hundred eight".