1912515474816 has 48 divisors (see below), whose sum is σ = 5503462502460. Its totient is φ = 637505157888.

The previous prime is 1912515474803. The next prime is 1912515474827. The reversal of 1912515474816 is 6184745152191.

It is a happy number.

1912515474816 is a `hidden beast` number, since 1 + 9 + 1 + 2 + 5 + 154 + 7 + 481 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 830083690 + ... + 830085993.

Almost surely, 2^{1912515474816} is an apocalyptic number.

1912515474816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1912515474816 is an abundant number, since it is smaller than the sum of its proper divisors (3590947027644).

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

1912515474816 is a wasteful number, since it uses less digits than its factorization.

1912515474816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660169703 (or 1660169688 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 1912515474816 in words is "one trillion, nine hundred twelve billion, five hundred fifteen million, four hundred seventy-four thousand, eight hundred sixteen".