4291879978025 has 48 divisors (see below), whose sum is σ = 5426480683008. Its totient is φ = 3366632808000.

The previous prime is 4291879978021. The next prime is 4291879978027. The reversal of 4291879978025 is 5208799781924.

It is not a de Polignac number, because 4291879978025 - 2² = 4291879978021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4291879978025.

It is not an unprimeable number, because it can be changed into a prime (4291879978021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 252291770 + ... + 252308780.

It is an arithmetic number, because the mean of its divisors is an integer number (113051680896).

Almost surely, 2^{4291879978025} is an apocalyptic number.

It is an amenable number.

4291879978025 is a deficient number, since it is larger than the sum of its proper divisors (1134600704983).

4291879978025 is a wasteful number, since it uses less digits than its factorization.

4291879978025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17862 (or 17857 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 71.

The spelling of 4291879978025 in words is "four trillion, two hundred ninety-one billion, eight hundred seventy-nine million, nine hundred seventy-eight thousand, twenty-five".