1497091487868 has 48 divisors (see below), whose sum is σ = 3881421724320. Its totient is φ = 499021056000.

The previous prime is 1497091487807. The next prime is 1497091487917. The reversal of 1497091487868 is 8687841907941.

1497091487868 is a `hidden beast` number, since 1 + 497 + 0 + 9 + 1 + 4 + 8 + 78 + 68 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1497091487796 and 1497091487805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7835068 + ... + 8023868.

It is an arithmetic number, because the mean of its divisors is an integer number (80862952590).

Almost surely, 2^{1497091487868} is an apocalyptic number.

1497091487868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1497091487868 is an abundant number, since it is smaller than the sum of its proper divisors (2384330236452).

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

1497091487868 is a wasteful number, since it uses less digits than its factorization.

1497091487868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262235 (or 262227 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 72.

The spelling of 1497091487868 in words is "one trillion, four hundred ninety-seven billion, ninety-one million, four hundred eighty-seven thousand, eight hundred sixty-eight".