15620457453 has 16 divisors (see below), whose sum is σ = 21466876032. Its totient is φ = 10098648000.

The previous prime is 15620457449. The next prime is 15620457467. The reversal of 15620457453 is 35475402651.

It is not a de Polignac number, because 15620457453 - 2² = 15620457449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15620457443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588118 + ... + 614103.

It is an arithmetic number, because the mean of its divisors is an integer number (1341679752).

Almost surely, 2^15620457453 is an apocalyptic number.

It is an amenable number.

15620457453 is a deficient number, since it is larger than the sum of its proper divisors (5846418579).

15620457453 is a wasteful number, since it uses less digits than its factorization.

15620457453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202356.

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 15620457453 in words is "fifteen billion, six hundred twenty million, four hundred fifty-seven thousand, four hundred fifty-three".