2525778701736 has 128 divisors (see below), whose sum is σ = 6829135488000. Its totient is φ = 776011180032.

The previous prime is 2525778701731. The next prime is 2525778701737. The reversal of 2525778701736 is 6371078775252.

It is a self number, because there is not a number n which added to its sum of digits gives 2525778701736.

It is not an unprimeable number, because it can be changed into a prime (2525778701731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2125765 + ... + 3093611.

It is an arithmetic number, because the mean of its divisors is an integer number (53352621000).

Almost surely, 2^{2525778701736} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525778701736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3414567744000).

2525778701736 is an abundant number, since it is smaller than the sum of its proper divisors (4303356786264).

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

2525778701736 is a wasteful number, since it uses less digits than its factorization.

2525778701736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968031 (or 968027 counting only the distinct ones).

The product of its (nonzero) digits is 34574400, while the sum is 60.

The spelling of 2525778701736 in words is "two trillion, five hundred twenty-five billion, seven hundred seventy-eight million, seven hundred one thousand, seven hundred thirty-six".