2002378155725 has 12 divisors (see below), whose sum is σ = 2483773632480. Its totient is φ = 1601370447600.

The previous prime is 2002378155697. The next prime is 2002378155733. The reversal of 2002378155725 is 5275518732002.

It is not a de Polignac number, because 2002378155725 - 2²⁰ = 2002377107149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002378155725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13225145 + ... + 13375694.

It is an arithmetic number, because the mean of its divisors is an integer number (206981136040).

Almost surely, 2^{2002378155725} is an apocalyptic number.

2002378155725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2002378155725 is a deficient number, since it is larger than the sum of its proper divisors (481395476755).

2002378155725 is a wasteful number, since it uses less digits than its factorization.

2002378155725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26603860 (or 26603855 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 2002378155725 in words is "two trillion, two billion, three hundred seventy-eight million, one hundred fifty-five thousand, seven hundred twenty-five".