72403805982 has 16 divisors (see below), whose sum is σ = 144844571520. Its totient is φ = 24128442072.

The previous prime is 72403805941. The next prime is 72403805983. The reversal of 72403805982 is 28950830427.

It is a super-2 number, since 2×72403805982² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72403805983) 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, 1514482 + ... + 1561557.

It is an arithmetic number, because the mean of its divisors is an integer number (9052785720).

Almost surely, 2^72403805982 is an apocalyptic number.

72403805982 is an abundant number, since it is smaller than the sum of its proper divisors (72440765538).

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

72403805982 is a wasteful number, since it uses less digits than its factorization.

72403805982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079967.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 72403805982 in words is "seventy-two billion, four hundred three million, eight hundred five thousand, nine hundred eighty-two".