72420374512535 has 8 divisors (see below), whose sum is σ = 99319370760096. Its totient is φ = 49659685380000.

The previous prime is 72420374512529. The next prime is 72420374512553. The reversal of 72420374512535 is 53521547302427.

It is a happy number.

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

It is not a de Polignac number, because 72420374512535 - 2¹⁶ = 72420374446999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034576778716 + ... + 1034576778785.

It is an arithmetic number, because the mean of its divisors is an integer number (12414921345012).

Almost surely, 2^{72420374512535} is an apocalyptic number.

72420374512535 is a deficient number, since it is larger than the sum of its proper divisors (26898996247561).

72420374512535 is a wasteful number, since it uses less digits than its factorization.

72420374512535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069153557513.

The product of its (nonzero) digits is 7056000, while the sum is 50.

The spelling of 72420374512535 in words is "seventy-two trillion, four hundred twenty billion, three hundred seventy-four million, five hundred twelve thousand, five hundred thirty-five".