72425553567651 has 64 divisors (see below), whose sum is σ = 112678284656640. Its totient is φ = 45889751365920.

The previous prime is 72425553567649. The next prime is 72425553567713. The reversal of 72425553567651 is 15676535552427.

It is a happy number.

72425553567651 is a `hidden beast` number, since 7 + 2 + 4 + 2 + 5 + 5 + 5 + 3 + 567 + 65 + 1 = 666.

It is not a de Polignac number, because 72425553567651 - 2¹ = 72425553567649 is a prime.

It is a super-3 number, since 3×72425553567651³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (72425553567251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79080516 + ... + 79991118.

It is an arithmetic number, because the mean of its divisors is an integer number (1760598197760).

Almost surely, 2^{72425553567651} is an apocalyptic number.

72425553567651 is a deficient number, since it is larger than the sum of its proper divisors (40252731088989).

72425553567651 is a wasteful number, since it uses less digits than its factorization.

72425553567651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911453 (or 911447 counting only the distinct ones).

The product of its digits is 264600000, while the sum is 63.

The spelling of 72425553567651 in words is "seventy-two trillion, four hundred twenty-five billion, five hundred fifty-three million, five hundred sixty-seven thousand, six hundred fifty-one".