1491579926291 has 12 divisors (see below), whose sum is σ = 1868572655712. Its totient is φ = 1180151149968.

The previous prime is 1491579926251. The next prime is 1491579926357. The reversal of 1491579926291 is 1926299751941.

It is not a de Polignac number, because 1491579926291 - 2⁶ = 1491579926227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1491579926201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1170784235 + ... + 1170785508.

It is an arithmetic number, because the mean of its divisors is an integer number (155714387976).

Almost surely, 2^{1491579926291} is an apocalyptic number.

1491579926291 is a deficient number, since it is larger than the sum of its proper divisors (376992729421).

1491579926291 is a wasteful number, since it uses less digits than its factorization.

1491579926291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341569770 (or 2341569763 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 65.

The spelling of 1491579926291 in words is "one trillion, four hundred ninety-one billion, five hundred seventy-nine million, nine hundred twenty-six thousand, two hundred ninety-one".