72530771407 has 8 divisors (see below), whose sum is σ = 75059288640. Its totient is φ = 70004084640.

The previous prime is 72530771387. The next prime is 72530771419. The reversal of 72530771407 is 70417703527.

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 72530771407 - 2²⁷ = 72396553679 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 (72530871407) 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, 376743 + ... + 535720.

It is an arithmetic number, because the mean of its divisors is an integer number (9382411080).

Almost surely, 2^72530771407 is an apocalyptic number.

72530771407 is a deficient number, since it is larger than the sum of its proper divisors (2528517233).

72530771407 is a wasteful number, since it uses less digits than its factorization.

72530771407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915233.

The product of its (nonzero) digits is 288120, while the sum is 43.

The spelling of 72530771407 in words is "seventy-two billion, five hundred thirty million, seven hundred seventy-one thousand, four hundred seven".