72400054633652 has 96 divisors (see below), whose sum is σ = 136699287524352. Its totient is φ = 33429030690816.

The previous prime is 72400054633619. The next prime is 72400054633657. The reversal of 72400054633652 is 25633645000427.

It is a junction number, because it is equal to n+sod(n) for n = 72400054633597 and 72400054633606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72400054633657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1579626128 + ... + 1579671960.

It is an arithmetic number, because the mean of its divisors is an integer number (1423950911712).

Almost surely, 2^{72400054633652} is an apocalyptic number.

It is an amenable number.

72400054633652 is a deficient number, since it is larger than the sum of its proper divisors (64299232890700).

72400054633652 is a wasteful number, since it uses less digits than its factorization.

72400054633652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47577 (or 47575 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 47.

The spelling of 72400054633652 in words is "seventy-two trillion, four hundred billion, fifty-four million, six hundred thirty-three thousand, six hundred fifty-two".