1279948243564 has 12 divisors (see below), whose sum is σ = 2300447519104. Its totient is φ = 622677523824.

The previous prime is 1279948243547. The next prime is 1279948243577. The reversal of 1279948243564 is 4653428499721.

It is a junction number, because it is equal to n+sod(n) for n = 1279948243496 and 1279948243505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4324149324 + ... + 4324149619.

Almost surely, 2^{1279948243564} is an apocalyptic number.

It is an amenable number.

1279948243564 is a deficient number, since it is larger than the sum of its proper divisors (1020499275540).

1279948243564 is a wasteful number, since it uses less digits than its factorization.

1279948243564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8648298984 (or 8648298982 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 64.

The spelling of 1279948243564 in words is "one trillion, two hundred seventy-nine billion, nine hundred forty-eight million, two hundred forty-three thousand, five hundred sixty-four".