2640127762525 has 24 divisors (see below), whose sum is σ = 3572436670848. Its totient is φ = 1919520960000.

The previous prime is 2640127762523. The next prime is 2640127762543. The reversal of 2640127762525 is 5252677210462.

It is not a de Polignac number, because 2640127762525 - 2¹ = 2640127762523 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640127762523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 503941 + ... + 2352490.

It is an arithmetic number, because the mean of its divisors is an integer number (148851527952).

Almost surely, 2^{2640127762525} is an apocalyptic number.

2640127762525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2640127762525 is a deficient number, since it is larger than the sum of its proper divisors (932308908323).

2640127762525 is a wasteful number, since it uses less digits than its factorization.

2640127762525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859813 (or 2859808 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 2640127762525 in words is "two trillion, six hundred forty billion, one hundred twenty-seven million, seven hundred sixty-two thousand, five hundred twenty-five".