72047000056 has 32 divisors (see below), whose sum is σ = 139663658880. Its totient is φ = 34806988800.

The previous prime is 72046999979. The next prime is 72047000057. The reversal of 72047000056 is 65000074027.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 72046999991 and 72047000027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72047000057) 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, 67641 + ... + 385576.

It is an arithmetic number, because the mean of its divisors is an integer number (4364489340).

Almost surely, 2^72047000056 is an apocalyptic number.

It is an amenable number.

72047000056 is a deficient number, since it is larger than the sum of its proper divisors (67616658824).

72047000056 is a wasteful number, since it uses less digits than its factorization.

72047000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453895 (or 453891 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The spelling of 72047000056 in words is "seventy-two billion, forty-seven million, fifty-six", and thus it is an aban number and an uban number.