1264192679008 has 72 divisors (see below), whose sum is σ = 2896662597192. Its totient is φ = 541528210944.

The previous prime is 1264192678943. The next prime is 1264192679039. The reversal of 1264192679008 is 8009762914621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264192679008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2979460 + ... + 3377212.

It is an arithmetic number, because the mean of its divisors is an integer number (40231424961).

Almost surely, 2^{1264192679008} 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 1264192679008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1448331298596).

1264192679008 is an abundant number, since it is smaller than the sum of its proper divisors (1632469918184).

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

1264192679008 is a wasteful number, since it uses less digits than its factorization.

1264192679008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399804 (or 399789 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 1264192679008 in words is "one trillion, two hundred sixty-four billion, one hundred ninety-two million, six hundred seventy-nine thousand, eight".