137420771975 has 12 divisors (see below), whose sum is σ = 171064807104. Its totient is φ = 109508843520.

The previous prime is 137420771951. The next prime is 137420771977. The reversal of 137420771975 is 579177024731.

It is not a de Polignac number, because 137420771975 - 2³⁴ = 120240902791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137420771977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10687799 + ... + 10700648.

It is an arithmetic number, because the mean of its divisors is an integer number (14255400592).

Almost surely, 2^137420771975 is an apocalyptic number.

137420771975 is a deficient number, since it is larger than the sum of its proper divisors (33644035129).

137420771975 is a wasteful number, since it uses less digits than its factorization.

137420771975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21388714 (or 21388709 counting only the distinct ones).

The product of its (nonzero) digits is 2593080, while the sum is 53.

The spelling of 137420771975 in words is "one hundred thirty-seven billion, four hundred twenty million, seven hundred seventy-one thousand, nine hundred seventy-five".