25078820451216 has 40 divisors (see below), whose sum is σ = 74042231809344. Its totient is φ = 7165377271680.

The previous prime is 25078820451031. The next prime is 25078820451233. The reversal of 25078820451216 is 61215402887052.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37319672955 + ... + 37319673626.

Almost surely, 2^{25078820451216} is an apocalyptic number.

It is an amenable number.

25078820451216 is an abundant number, since it is smaller than the sum of its proper divisors (48963411358128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25078820451216 is a wasteful number, since it uses less digits than its factorization.

25078820451216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74639346599 (or 74639346593 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 25078820451216 in words is "twenty-five trillion, seventy-eight billion, eight hundred twenty million, four hundred fifty-one thousand, two hundred sixteen".