72407655114457 has 8 divisors (see below), whose sum is σ = 77977629059400. Its totient is φ = 66837703215360.

The previous prime is 72407655114413. The next prime is 72407655114479. The reversal of 72407655114457 is 75441155670427.

It can be written as a sum of positive squares in 4 ways, for example, as 7396637544976 + 65011017569481 = 2719676^2 + 8062941^2 .

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 72407655114457 - 2²³ = 72407646725849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72407655114497) 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, 1655169 + ... + 12147217.

It is an arithmetic number, because the mean of its divisors is an integer number (9747203632425).

Almost surely, 2^{72407655114457} is an apocalyptic number.

It is an amenable number.

72407655114457 is a deficient number, since it is larger than the sum of its proper divisors (5569973944943).

72407655114457 is a wasteful number, since it uses less digits than its factorization.

72407655114457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022923.

The product of its (nonzero) digits is 32928000, while the sum is 58.

The spelling of 72407655114457 in words is "seventy-two trillion, four hundred seven billion, six hundred fifty-five million, one hundred fourteen thousand, four hundred fifty-seven".