7972038550 has 48 divisors (see below), whose sum is σ = 17199256320. Its totient is φ = 2692467360.

The previous prime is 7972038517. The next prime is 7972038551. The reversal of 7972038550 is 558302797.

It is a super-2 number, since 2×7972038550² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7972038550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972038551) 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, 146530 + ... + 193429.

It is an arithmetic number, because the mean of its divisors is an integer number (358317840).

Almost surely, 2^7972038550 is an apocalyptic number.

7972038550 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7972038550 is an abundant number, since it is smaller than the sum of its proper divisors (9227217770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7972038550 is a wasteful number, since it uses less digits than its factorization.

7972038550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340045 (or 340040 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 7972038550 is about 89286.2730211089. The cubic root of 7972038550 is about 1997.6671591514.

The spelling of 7972038550 in words is "seven billion, nine hundred seventy-two million, thirty-eight thousand, five hundred fifty".