1293722979992 has 32 divisors (see below), whose sum is σ = 2431152662400. Its totient is φ = 645416004864.

The previous prime is 1293722979877. The next prime is 1293722980001. The reversal of 1293722979992 is 2999792273921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31083548 + ... + 31125140.

It is an arithmetic number, because the mean of its divisors is an integer number (75973520700).

Almost surely, 2^{1293722979992} is an apocalyptic number.

It is an amenable number.

1293722979992 is a deficient number, since it is larger than the sum of its proper divisors (1137429682408).

1293722979992 is a wasteful number, since it uses less digits than its factorization.

1293722979992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50195 (or 50191 counting only the distinct ones).

The product of its digits is 138883248, while the sum is 71.

The spelling of 1293722979992 in words is "one trillion, two hundred ninety-three billion, seven hundred twenty-two million, nine hundred seventy-nine thousand, nine hundred ninety-two".