1497891996912 has 40 divisors (see below), whose sum is σ = 4097175170256. Its totient is φ = 469926900736.

The previous prime is 1497891996911. The next prime is 1497891996917. The reversal of 1497891996912 is 2196991987941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1497891996911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917825163 + ... + 917826794.

Almost surely, 2^{1497891996912} is an apocalyptic number.

1497891996912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1497891996912 is an abundant number, since it is smaller than the sum of its proper divisors (2599283173344).

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

1497891996912 is a wasteful number, since it uses less digits than its factorization.

1497891996912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835651985 (or 1835651979 counting only the distinct ones).

The product of its digits is 158723712, while the sum is 75.

The spelling of 1497891996912 in words is "one trillion, four hundred ninety-seven billion, eight hundred ninety-one million, nine hundred ninety-six thousand, nine hundred twelve".