72882077537 has 4 divisors (see below), whose sum is σ = 72883903680. Its totient is φ = 72880251396.

The previous prime is 72882077533. The next prime is 72882077557. The reversal of 72882077537 is 73577028827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73577028827 = 2267 ⋅32455681.

It is a cyclic number.

It is not a de Polignac number, because 72882077537 - 2² = 72882077533 is a prime.

It is a super-2 number, since 2×72882077537² (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 (72882077531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851837 + ... + 933482.

It is an arithmetic number, because the mean of its divisors is an integer number (18220975920).

Almost surely, 2^72882077537 is an apocalyptic number.

It is an amenable number.

72882077537 is a deficient number, since it is larger than the sum of its proper divisors (1826143).

72882077537 is a wasteful number, since it uses less digits than its factorization.

72882077537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826142.

The product of its (nonzero) digits is 9219840, while the sum is 56.

The spelling of 72882077537 in words is "seventy-two billion, eight hundred eighty-two million, seventy-seven thousand, five hundred thirty-seven".