72812490380 has 24 divisors (see below), whose sum is σ = 174749977248. Its totient is φ = 24964282368.

The previous prime is 72812490371. The next prime is 72812490383. The reversal of 72812490380 is 8309421827.

It is not an unprimeable number, because it can be changed into a prime (72812490383) 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, 260044469 + ... + 260044748.

It is an arithmetic number, because the mean of its divisors is an integer number (7281249052).

Almost surely, 2^72812490380 is an apocalyptic number.

72812490380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72812490380 is an abundant number, since it is smaller than the sum of its proper divisors (101937486868).

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

72812490380 is a wasteful number, since it uses less digits than its factorization.

72812490380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520089233 (or 520089231 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 72812490380 in words is "seventy-two billion, eight hundred twelve million, four hundred ninety thousand, three hundred eighty".