7372388881 has 32 divisors (see below), whose sum is σ = 9208588032. Its totient is φ = 5805845760.

The previous prime is 7372388879. The next prime is 7372388893. The reversal of 7372388881 is 1888832737.

It is not a de Polignac number, because 7372388881 - 2¹ = 7372388879 is a prime.

It is a super-2 number, since 2×7372388881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7372388981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153171 + ... + 195463.

It is an arithmetic number, because the mean of its divisors is an integer number (287768376).

Almost surely, 2^7372388881 is an apocalyptic number.

It is an amenable number.

7372388881 is a deficient number, since it is larger than the sum of its proper divisors (1836199151).

7372388881 is a wasteful number, since it uses less digits than its factorization.

7372388881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42393.

The product of its digits is 3612672, while the sum is 55.

The square root of 7372388881 is about 85862.6163181626. The cubic root of 7372388881 is about 1946.2684615684.

The spelling of 7372388881 in words is "seven billion, three hundred seventy-two million, three hundred eighty-eight thousand, eight hundred eighty-one".