25428138022 has 32 divisors (see below), whose sum is σ = 43808050944. Its totient is φ = 10843653600.

The previous prime is 25428138013. The next prime is 25428138031. The reversal of 25428138022 is 22083182452.

It is an interprime number because it is at equal distance from previous prime (25428138013) and next prime (25428138031).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2829997 + ... + 2838967.

It is an arithmetic number, because the mean of its divisors is an integer number (1369001592).

Almost surely, 2^25428138022 is an apocalyptic number.

25428138022 is a deficient number, since it is larger than the sum of its proper divisors (18379912922).

25428138022 is a wasteful number, since it uses less digits than its factorization.

25428138022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9964.

The product of its (nonzero) digits is 61440, while the sum is 37.

The spelling of 25428138022 in words is "twenty-five billion, four hundred twenty-eight million, one hundred thirty-eight thousand, twenty-two".