72549151047 has 6 divisors (see below), whose sum is σ = 104793218192. Its totient is φ = 48366100692.

The previous prime is 72549151013. The next prime is 72549151097. The reversal of 72549151047 is 74015194527.

72549151047 is a `hidden beast` number, since 7 + 2 + 5 + 4 + 91 + 510 + 47 = 666.

It is not a de Polignac number, because 72549151047 - 2²⁷ = 72414933319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72549150993 and 72549151011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72549151007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4030508383 + ... + 4030508400.

Almost surely, 2^72549151047 is an apocalyptic number.

72549151047 is a deficient number, since it is larger than the sum of its proper divisors (32244067145).

72549151047 is a wasteful number, since it uses less digits than its factorization.

72549151047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8061016789 (or 8061016786 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 72549151047 in words is "seventy-two billion, five hundred forty-nine million, one hundred fifty-one thousand, forty-seven".