10002556007877 has 4 divisors (see below), whose sum is σ = 13336741343840. Its totient is φ = 6668370671916.

The previous prime is 10002556007867. The next prime is 10002556007881. The reversal of 10002556007877 is 77870065520001.

It is a happy number.

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 not a de Polignac number, because 10002556007877 - 2⁶ = 10002556007813 is a prime.

It is a super-2 number, since 2×10002556007877² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002556007827) 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, 1667092667977 + ... + 1667092667982.

It is an arithmetic number, because the mean of its divisors is an integer number (3334185335960).

Almost surely, 2^{10002556007877} is an apocalyptic number.

It is an amenable number.

10002556007877 is a deficient number, since it is larger than the sum of its proper divisors (3334185335963).

10002556007877 is an equidigital number, since it uses as much as digits as its factorization.

10002556007877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334185335962.

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 10002556007877 in words is "ten trillion, two billion, five hundred fifty-six million, seven thousand, eight hundred seventy-seven".