25779014070 has 64 divisors (see below), whose sum is σ = 64158981120. Its totient is φ = 6623641728.

The previous prime is 25779014059. The next prime is 25779014089. The reversal of 25779014070 is 7041097752.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1591 + ... + 227069.

It is an arithmetic number, because the mean of its divisors is an integer number (1002484080).

Almost surely, 2^25779014070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25779014070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32079490560).

25779014070 is an abundant number, since it is smaller than the sum of its proper divisors (38379967050).

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

25779014070 is a wasteful number, since it uses less digits than its factorization.

25779014070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225629.

The product of its (nonzero) digits is 123480, while the sum is 42.

The spelling of 25779014070 in words is "twenty-five billion, seven hundred seventy-nine million, fourteen thousand, seventy".