2251064938798 has 16 divisors (see below), whose sum is σ = 3827721759120. Its totient is φ = 984271309056.

The previous prime is 2251064938781. The next prime is 2251064938823. The reversal of 2251064938798 is 8978394601522.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2278405315 + ... + 2278406302.

It is an arithmetic number, because the mean of its divisors is an integer number (239232609945).

It is a 1-persistent number, because it is pandigital, but 2⋅2251064938798 = 4502129877596 is not.

Almost surely, 2^{2251064938798} is an apocalyptic number.

2251064938798 is a deficient number, since it is larger than the sum of its proper divisors (1576656820322).

2251064938798 is a wasteful number, since it uses less digits than its factorization.

2251064938798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556811651.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 2251064938798 in words is "two trillion, two hundred fifty-one billion, sixty-four million, nine hundred thirty-eight thousand, seven hundred ninety-eight".