72153881001 has 8 divisors (see below), whose sum is σ = 106894638560. Its totient is φ = 48102587316.

The previous prime is 72153880987. The next prime is 72153881011. The reversal of 72153881001 is 10018835127.

It is not a de Polignac number, because 72153881001 - 2¹⁴ = 72153864617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72153881011) 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, 1336182955 + ... + 1336183008.

It is an arithmetic number, because the mean of its divisors is an integer number (13361829820).

Almost surely, 2^72153881001 is an apocalyptic number.

It is an amenable number.

72153881001 is a deficient number, since it is larger than the sum of its proper divisors (34740757559).

72153881001 is a wasteful number, since it uses less digits than its factorization.

72153881001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672365972 (or 2672365966 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 72153881001 in words is "seventy-two billion, one hundred fifty-three million, eight hundred eighty-one thousand, one".