7431872080 has 20 divisors (see below), whose sum is σ = 17279102772. Its totient is φ = 2972748800.

The previous prime is 7431872029. The next prime is 7431872087. The reversal of 7431872080 is 802781347.

It can be written as a sum of positive squares in 2 ways, for example, as 2945015824 + 4486856256 = 54268^2 + 66984^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×7431872080² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7431872087) 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 3 ways as a sum of consecutive naturals, for example, 46449121 + ... + 46449280.

Almost surely, 2^7431872080 is an apocalyptic number.

It is an amenable number.

7431872080 is an abundant number, since it is smaller than the sum of its proper divisors (9847230692).

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

7431872080 is a wasteful number, since it uses less digits than its factorization.

7431872080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92898414 (or 92898408 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 7431872080 is about 86208.3063283347. The cubic root of 7431872080 is about 1951.4888546197.

The spelling of 7431872080 in words is "seven billion, four hundred thirty-one million, eight hundred seventy-two thousand, eighty".