137217739473 has 8 divisors (see below), whose sum is σ = 203285540000. Its totient is φ = 91478492964.

The previous prime is 137217739459. The next prime is 137217739501. The reversal of 137217739473 is 374937712731.

It is a happy number.

137217739473 is a `hidden beast` number, since 1 + 3 + 72 + 1 + 77 + 39 + 473 = 666.

It is not a de Polignac number, because 137217739473 - 2¹² = 137217735377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137217739573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2541069223 + ... + 2541069276.

It is an arithmetic number, because the mean of its divisors is an integer number (25410692500).

Almost surely, 2^137217739473 is an apocalyptic number.

It is an amenable number.

137217739473 is a deficient number, since it is larger than the sum of its proper divisors (66067800527).

137217739473 is an equidigital number, since it uses as much as digits as its factorization.

137217739473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5082138508 (or 5082138502 counting only the distinct ones).

The product of its digits is 4667544, while the sum is 54.

The spelling of 137217739473 in words is "one hundred thirty-seven billion, two hundred seventeen million, seven hundred thirty-nine thousand, four hundred seventy-three".