25477127412 has 36 divisors (see below), whose sum is σ = 65342167968. Its totient is φ = 7720341200.

The previous prime is 25477127381. The next prime is 25477127419. The reversal of 25477127412 is 21472177452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25477127419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8771664 + ... + 8774567.

Almost surely, 2^25477127412 is an apocalyptic number.

25477127412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25477127412 is an abundant number, since it is smaller than the sum of its proper divisors (39865040556).

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

25477127412 is a wasteful number, since it uses less digits than its factorization.

25477127412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546260 (or 17546247 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The spelling of 25477127412 in words is "twenty-five billion, four hundred seventy-seven million, one hundred twenty-seven thousand, four hundred twelve".