1215467915928 has 48 divisors (see below), whose sum is σ = 3534779146680. Its totient is φ = 347276547072.

The previous prime is 1215467915927. The next prime is 1215467915929. The reversal of 1215467915928 is 8295197645121.

It is an interprime number because it is at equal distance from previous prime (1215467915927) and next prime (1215467915929).

It is a super-2 number, since 2×1215467915928² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215467915927) 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, 516779401 + ... + 516781752.

Almost surely, 2^{1215467915928} is an apocalyptic number.

It is an amenable number.

1215467915928 is an abundant number, since it is smaller than the sum of its proper divisors (2319311230752).

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

1215467915928 is a wasteful number, since it uses less digits than its factorization.

1215467915928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033561176 (or 1033561165 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 60.

The spelling of 1215467915928 in words is "one trillion, two hundred fifteen billion, four hundred sixty-seven million, nine hundred fifteen thousand, nine hundred twenty-eight".