1252776276390 has 64 divisors (see below), whose sum is σ = 3058944134400. Its totient is φ = 328269558144.

The previous prime is 1252776276379. The next prime is 1252776276421. The reversal of 1252776276390 is 936726772521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252776276390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3977721 + ... + 4281099.

It is an arithmetic number, because the mean of its divisors is an integer number (47796002100).

Almost surely, 2^{1252776276390} is an apocalyptic number.

1252776276390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252776276390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1529472067200).

1252776276390 is an abundant number, since it is smaller than the sum of its proper divisors (1806167858010).

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

1252776276390 is a wasteful number, since it uses less digits than its factorization.

1252776276390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305781.

The product of its (nonzero) digits is 13335840, while the sum is 57.

The spelling of 1252776276390 in words is "one trillion, two hundred fifty-two billion, seven hundred seventy-six million, two hundred seventy-six thousand, three hundred ninety".