72537835787 has 8 divisors (see below), whose sum is σ = 75247650240. Its totient is φ = 69872811840.

The previous prime is 72537835757. The next prime is 72537835801. The reversal of 72537835787 is 78753873527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72537835787 - 2⁶ = 72537835723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72537835717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11194328 + ... + 11200805.

It is an arithmetic number, because the mean of its divisors is an integer number (9405956280).

Almost surely, 2^72537835787 is an apocalyptic number.

72537835787 is a deficient number, since it is larger than the sum of its proper divisors (2709814453).

72537835787 is a wasteful number, since it uses less digits than its factorization.

72537835787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22395253.

The product of its digits is 69148800, while the sum is 62.

The spelling of 72537835787 in words is "seventy-two billion, five hundred thirty-seven million, eight hundred thirty-five thousand, seven hundred eighty-seven".