25734061626 has 96 divisors (see below), whose sum is σ = 64154119680. Its totient is φ = 6737919552.

The previous prime is 25734061597. The next prime is 25734061679. The reversal of 25734061626 is 62616043752.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 973581 + ... + 999663.

It is an arithmetic number, because the mean of its divisors is an integer number (668272080).

Almost surely, 2^25734061626 is an apocalyptic number.

25734061626 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25734061626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32077059840).

25734061626 is an abundant number, since it is smaller than the sum of its proper divisors (38420058054).

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

25734061626 is a wasteful number, since it uses less digits than its factorization.

25734061626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26260 (or 26247 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 25734061626 in words is "twenty-five billion, seven hundred thirty-four million, sixty-one thousand, six hundred twenty-six".