71730022513 has 16 divisors (see below), whose sum is σ = 79504920576. Its totient is φ = 64368944640.

The previous prime is 71730022499. The next prime is 71730022523. The reversal of 71730022513 is 31522003717.

It is a cyclic number.

It is not a de Polignac number, because 71730022513 - 2²¹ = 71727925361 is a prime.

It is a super-2 number, since 2×71730022513² (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 (71730022523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170673 + ... + 415438.

It is an arithmetic number, because the mean of its divisors is an integer number (4969057536).

Almost surely, 2^71730022513 is an apocalyptic number.

It is an amenable number.

71730022513 is a deficient number, since it is larger than the sum of its proper divisors (7774898063).

71730022513 is a wasteful number, since it uses less digits than its factorization.

71730022513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586464.

The product of its (nonzero) digits is 8820, while the sum is 31.

The spelling of 71730022513 in words is "seventy-one billion, seven hundred thirty million, twenty-two thousand, five hundred thirteen".