2651138789376 has 832 divisors, whose sum is σ = 9294114078720. Its totient is φ = 651959992320.

The previous prime is 2651138789371. The next prime is 2651138789399. The reversal of 2651138789376 is 6739878311562.

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

It is not an unprimeable number, because it can be changed into a prime (2651138789371) 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, 1454271601 + ... + 1454273423.

Almost surely, 2^{2651138789376} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2651138789376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4647057039360).

2651138789376 is an abundant number, since it is smaller than the sum of its proper divisors (6642975289344).

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

2651138789376 is a wasteful number, since it uses less digits than its factorization.

2651138789376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950 (or 1928 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 66.

The spelling of 2651138789376 in words is "two trillion, six hundred fifty-one billion, one hundred thirty-eight million, seven hundred eighty-nine thousand, three hundred seventy-six".