25390127790 has 48 divisors (see below), whose sum is σ = 67798512288. Its totient is φ = 6587707968.

The previous prime is 25390127773. The next prime is 25390127797. The reversal of 25390127790 is 9772109352.

25390127790 is a `hidden beast` number, since 2 + 539 + 0 + 1 + 27 + 7 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25390127797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3809002 + ... + 3815661.

It is an arithmetic number, because the mean of its divisors is an integer number (1412469006).

Almost surely, 2^25390127790 is an apocalyptic number.

25390127790 is an abundant number, since it is smaller than the sum of its proper divisors (42408384498).

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

25390127790 is a wasteful number, since it uses less digits than its factorization.

25390127790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7624713 (or 7624710 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The spelling of 25390127790 in words is "twenty-five billion, three hundred ninety million, one hundred twenty-seven thousand, seven hundred ninety".