2623534666140 has 96 divisors (see below), whose sum is σ = 7390981624320. Its totient is φ = 695316726016.

The previous prime is 2623534666079. The next prime is 2623534666147. The reversal of 2623534666140 is 416664353262.

It is a self number, because there is not a number n which added to its sum of digits gives 2623534666140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2623534666147) 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, 86848279 + ... + 86878481.

It is an arithmetic number, because the mean of its divisors is an integer number (76989391920).

Almost surely, 2^{2623534666140} is an apocalyptic number.

2623534666140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2623534666140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3695490812160).

2623534666140 is an abundant number, since it is smaller than the sum of its proper divisors (4767446958180).

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

2623534666140 is a wasteful number, since it uses less digits than its factorization.

2623534666140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39051 (or 39049 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 2623534666140 in words is "two trillion, six hundred twenty-three billion, five hundred thirty-four million, six hundred sixty-six thousand, one hundred forty".