72654278400 has 1296 divisors, whose sum is σ = 305558443008. Its totient is φ = 16920576000.

The previous prime is 72654278381. The next prime is 72654278413. The reversal of 72654278400 is 487245627.

It is a happy number.

72654278400 is a `hidden beast` number, since 7 + 26 + 542 + 7 + 84 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1296).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 530323132 + ... + 530323268.

Almost surely, 2^72654278400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72654278400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152779221504).

72654278400 is an abundant number, since it is smaller than the sum of its proper divisors (232904164608).

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

72654278400 is a wasteful number, since it uses less digits than its factorization.

72654278400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 72654278400 in words is "seventy-two billion, six hundred fifty-four million, two hundred seventy-eight thousand, four hundred".