72151506398 has 32 divisors (see below), whose sum is σ = 111960465408. Its totient is φ = 34854071200.

The previous prime is 72151506397. The next prime is 72151506467. The reversal of 72151506398 is 89360515127.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72151506397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336636 + ... + 2367312.

It is an arithmetic number, because the mean of its divisors is an integer number (3498764544).

Almost surely, 2^72151506398 is an apocalyptic number.

72151506398 is a deficient number, since it is larger than the sum of its proper divisors (39808959010).

72151506398 is a wasteful number, since it uses less digits than its factorization.

72151506398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31048.

The product of its (nonzero) digits is 453600, while the sum is 47.

The spelling of 72151506398 in words is "seventy-two billion, one hundred fifty-one million, five hundred six thousand, three hundred ninety-eight".