72412057643726 has 4 divisors (see below), whose sum is σ = 108618086465592. Its totient is φ = 36206028821862.

The previous prime is 72412057643713. The next prime is 72412057643803. The reversal of 72412057643726 is 62734675021427.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18103014410930 + ... + 18103014410933.

It is an arithmetic number, because the mean of its divisors is an integer number (27154521616398).

Almost surely, 2^{72412057643726} is an apocalyptic number.

72412057643726 is a deficient number, since it is larger than the sum of its proper divisors (36206028821866).

72412057643726 is a wasteful number, since it uses less digits than its factorization.

72412057643726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36206028821865.

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 72412057643726 in words is "seventy-two trillion, four hundred twelve billion, fifty-seven million, six hundred forty-three thousand, seven hundred twenty-six".