10202556493 has 4 divisors (see below), whose sum is σ = 10275956320. Its totient is φ = 10129156668.

The previous prime is 10202556479. The next prime is 10202556523. The reversal of 10202556493 is 39465520201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10202556493 - 2²⁵ = 10169002061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202556193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36699705 + ... + 36699982.

It is an arithmetic number, because the mean of its divisors is an integer number (2568989080).

Almost surely, 2^10202556493 is an apocalyptic number.

It is an amenable number.

10202556493 is a deficient number, since it is larger than the sum of its proper divisors (73399827).

10202556493 is an equidigital number, since it uses as much as digits as its factorization.

10202556493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73399826.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 10202556493 in words is "ten billion, two hundred two million, five hundred fifty-six thousand, four hundred ninety-three".