2765627231640 has 256 divisors, whose sum is σ = 10404219571200. Its totient is φ = 572507080704.

The previous prime is 2765627231597. The next prime is 2765627231641. The reversal of 2765627231640 is 461327265672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765627231641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1810510 + ... + 2968029.

It is an arithmetic number, because the mean of its divisors is an integer number (40641482700).

Almost surely, 2^{2765627231640} is an apocalyptic number.

2765627231640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2765627231640 is an abundant number, since it is smaller than the sum of its proper divisors (7638592339560).

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

2765627231640 is a wasteful number, since it uses less digits than its factorization.

2765627231640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4778626 (or 4778622 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 2765627231640 in words is "two trillion, seven hundred sixty-five billion, six hundred twenty-seven million, two hundred thirty-one thousand, six hundred forty".