1291799474288 has 20 divisors (see below), whose sum is σ = 2512097141088. Its totient is φ = 643516341120.

The previous prime is 1291799474269. The next prime is 1291799474293. The reversal of 1291799474288 is 8824749971921.

It is a congruent number.

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, 148957781 + ... + 148966452.

Almost surely, 2^{1291799474288} is an apocalyptic number.

It is an amenable number.

1291799474288 is a deficient number, since it is larger than the sum of its proper divisors (1220297666800).

1291799474288 is a wasteful number, since it uses less digits than its factorization.

1291799474288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297924512 (or 297924506 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 71.

The spelling of 1291799474288 in words is "one trillion, two hundred ninety-one billion, seven hundred ninety-nine million, four hundred seventy-four thousand, two hundred eighty-eight".