71500137793 has 8 divisors (see below), whose sum is σ = 86015203520. Its totient is φ = 58060262160.

The previous prime is 71500137781. The next prime is 71500137811. The reversal of 71500137793 is 39773100517.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71500137793 - 2²¹ = 71498040641 is a prime.

It is a super-2 number, since 2×71500137793² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71500137193) 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, 268797378 + ... + 268797643.

It is an arithmetic number, because the mean of its divisors is an integer number (10751900440).

Almost surely, 2^71500137793 is an apocalyptic number.

It is an amenable number.

71500137793 is a deficient number, since it is larger than the sum of its proper divisors (14515065727).

71500137793 is a wasteful number, since it uses less digits than its factorization.

71500137793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537595047.

The product of its (nonzero) digits is 138915, while the sum is 43.

The spelling of 71500137793 in words is "seventy-one billion, five hundred million, one hundred thirty-seven thousand, seven hundred ninety-three".