1250012762778 has 16 divisors (see below), whose sum is σ = 2692335181536. Its totient is φ = 384619311600.

The previous prime is 1250012762773. The next prime is 1250012762797. The reversal of 1250012762778 is 8772672100521.

It is not an unprimeable number, because it can be changed into a prime (1250012762773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8012902248 + ... + 8012902403.

It is an arithmetic number, because the mean of its divisors is an integer number (168270948846).

Almost surely, 2^{1250012762778} is an apocalyptic number.

1250012762778 is an abundant number, since it is smaller than the sum of its proper divisors (1442322418758).

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

1250012762778 is a wasteful number, since it uses less digits than its factorization.

1250012762778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16025804669.

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 1250012762778 in words is "one trillion, two hundred fifty billion, twelve million, seven hundred sixty-two thousand, seven hundred seventy-eight".