72726001507 has 4 divisors (see below), whose sum is σ = 73393212640. Its totient is φ = 72058790376.

The previous prime is 72726001493. The next prime is 72726001511. The reversal of 72726001507 is 70510062727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72726001507 - 2³¹ = 70578517859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72726007507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333605403 + ... + 333605620.

It is an arithmetic number, because the mean of its divisors is an integer number (18348303160).

Almost surely, 2^72726001507 is an apocalyptic number.

72726001507 is a deficient number, since it is larger than the sum of its proper divisors (667211133).

72726001507 is a wasteful number, since it uses less digits than its factorization.

72726001507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667211132.

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 72726001507 in words is "seventy-two billion, seven hundred twenty-six million, one thousand, five hundred seven".