51269258463822 has 128 divisors (see below), whose sum is σ = 137888758425600. Its totient is φ = 13784506864128.

The previous prime is 51269258463803. The next prime is 51269258463911. The reversal of 51269258463822 is 22836485296215.

51269258463822 is a `hidden beast` number, since 5 + 1 + 2 + 6 + 92 + 5 + 8 + 463 + 82 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 51269258463822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40131204 + ... + 41389032.

It is an arithmetic number, because the mean of its divisors is an integer number (1077255925200).

Almost surely, 2^{51269258463822} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51269258463822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68944379212800).

51269258463822 is an abundant number, since it is smaller than the sum of its proper divisors (86619499961778).

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

51269258463822 is a wasteful number, since it uses less digits than its factorization.

51269258463822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264207 (or 1264201 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 63.

The spelling of 51269258463822 in words is "fifty-one trillion, two hundred sixty-nine billion, two hundred fifty-eight million, four hundred sixty-three thousand, eight hundred twenty-two".