2634360640040 has 32 divisors (see below), whose sum is σ = 5941803681000. Its totient is φ = 1051167857664.

The previous prime is 2634360640039. The next prime is 2634360640049. The reversal of 2634360640040 is 400460634362.

It can be written as a sum of positive squares in 4 ways, for example, as 2551884841444 + 82475798596 = 1597462^2 + 287186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2634360639976 and 2634360640003.

It is not an unprimeable number, because it can be changed into a prime (2634360640049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80495885 + ... + 80528604.

Almost surely, 2^{2634360640040} is an apocalyptic number.

2634360640040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634360640040 is an abundant number, since it is smaller than the sum of its proper divisors (3307443040960).

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

2634360640040 is a wasteful number, since it uses less digits than its factorization.

2634360640040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161024909 (or 161024905 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 38.

The spelling of 2634360640040 in words is "two trillion, six hundred thirty-four billion, three hundred sixty million, six hundred forty thousand, forty".