25063742644746 has 64 divisors (see below), whose sum is σ = 55486855200000. Its totient is φ = 7497481844736.

The previous prime is 25063742644723. The next prime is 25063742644753. The reversal of 25063742644746 is 64744624736052.

It is a super-2 number, since 2×25063742644746² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25063742644746.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127995 + ... + 7081233.

It is an arithmetic number, because the mean of its divisors is an integer number (866982112500).

Almost surely, 2^{25063742644746} is an apocalyptic number.

25063742644746 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 25063742644746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27743427600000).

25063742644746 is an abundant number, since it is smaller than the sum of its proper divisors (30423112555254).

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

25063742644746 is a wasteful number, since it uses less digits than its factorization.

25063742644746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954543.

The product of its (nonzero) digits is 162570240, while the sum is 60.

The spelling of 25063742644746 in words is "twenty-five trillion, sixty-three billion, seven hundred forty-two million, six hundred forty-four thousand, seven hundred forty-six".