71563153137 has 24 divisors (see below), whose sum is σ = 111154410432. Its totient is φ = 40834836000.

The previous prime is 71563153091. The next prime is 71563153147. The reversal of 71563153137 is 73135136517.

It is not a de Polignac number, because 71563153137 - 2⁷ = 71563153009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71563153147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244189 + ... + 450282.

It is an arithmetic number, because the mean of its divisors is an integer number (4631433768).

Almost surely, 2^71563153137 is an apocalyptic number.

It is an amenable number.

71563153137 is a deficient number, since it is larger than the sum of its proper divisors (39591257295).

71563153137 is a wasteful number, since it uses less digits than its factorization.

71563153137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695189 (or 695182 counting only the distinct ones).

The product of its digits is 198450, while the sum is 42.

The spelling of 71563153137 in words is "seventy-one billion, five hundred sixty-three million, one hundred fifty-three thousand, one hundred thirty-seven".