2630439988440 has 64 divisors (see below), whose sum is σ = 8608712693760. Its totient is φ = 637682421120.

The previous prime is 2630439988417. The next prime is 2630439988469. The reversal of 2630439988440 is 448899340362.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996377464 + ... + 996380103.

It is an arithmetic number, because the mean of its divisors is an integer number (134511135840).

Almost surely, 2^{2630439988440} is an apocalyptic number.

2630439988440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2630439988440 is an abundant number, since it is smaller than the sum of its proper divisors (5978272705320).

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

2630439988440 is a wasteful number, since it uses less digits than its factorization.

2630439988440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992757592 (or 1992757588 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 60.

The spelling of 2630439988440 in words is "two trillion, six hundred thirty billion, four hundred thirty-nine million, nine hundred eighty-eight thousand, four hundred forty".