2554431611640 has 128 divisors (see below), whose sum is σ = 7902194872320. Its totient is φ = 660166272000.

The previous prime is 2554431611617. The next prime is 2554431611653. The reversal of 2554431611640 is 461161344552.

It is a junction number, because it is equal to n+sod(n) for n = 2554431611592 and 2554431611601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 976264 + ... + 2462103.

It is an arithmetic number, because the mean of its divisors is an integer number (61735897440).

Almost surely, 2^{2554431611640} is an apocalyptic number.

2554431611640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2554431611640 is an abundant number, since it is smaller than the sum of its proper divisors (5347763260680).

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

2554431611640 is a wasteful number, since it uses less digits than its factorization.

2554431611640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438573 (or 3438569 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 2554431611640 in words is "two trillion, five hundred fifty-four billion, four hundred thirty-one million, six hundred eleven thousand, six hundred forty".