2498640257784 has 32 divisors (see below), whose sum is σ = 6814473431040. Its totient is φ = 757163714400.

The previous prime is 2498640257767. The next prime is 2498640257821. The reversal of 2498640257784 is 4877520468942.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732272952 + ... + 4732273479.

It is an arithmetic number, because the mean of its divisors is an integer number (212952294720).

Almost surely, 2^{2498640257784} is an apocalyptic number.

2498640257784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2498640257784 is an abundant number, since it is smaller than the sum of its proper divisors (4315833173256).

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

2498640257784 is a wasteful number, since it uses less digits than its factorization.

2498640257784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464546451 (or 9464546447 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 66.

The spelling of 2498640257784 in words is "two trillion, four hundred ninety-eight billion, six hundred forty million, two hundred fifty-seven thousand, seven hundred eighty-four".