137447476657 has 4 divisors (see below), whose sum is σ = 137449856880. Its totient is φ = 137445096436.

The previous prime is 137447476643. The next prime is 137447476687. The reversal of 137447476657 is 756674744731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756674744731 = 57991 ⋅13048141.

It is a cyclic number.

It is not a de Polignac number, because 137447476657 - 2¹⁹ = 137446952369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137447476595 and 137447476604.

It is not an unprimeable number, because it can be changed into a prime (137447476687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101283 + ... + 1219720.

It is an arithmetic number, because the mean of its divisors is an integer number (34362464220).

Almost surely, 2^137447476657 is an apocalyptic number.

It is an amenable number.

137447476657 is a deficient number, since it is larger than the sum of its proper divisors (2380223).

137447476657 is an equidigital number, since it uses as much as digits as its factorization.

137447476657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380222.

The product of its digits is 82978560, while the sum is 61.

The spelling of 137447476657 in words is "one hundred thirty-seven billion, four hundred forty-seven million, four hundred seventy-six thousand, six hundred fifty-seven".