1215006988799 has 2 divisors, whose sum is σ = 1215006988800. Its totient is φ = 1215006988798.

The previous prime is 1215006988757. The next prime is 1215006988813. The reversal of 1215006988799 is 9978896005121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1215006988799 - 2²⁴ = 1214990211583 is a prime.

It is a super-2 number, since 2×1215006988799² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215006988709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607503494399 + 607503494400.

It is an arithmetic number, because the mean of its divisors is an integer number (607503494400).

Almost surely, 2^{1215006988799} is an apocalyptic number.

1215006988799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215006988799 is an equidigital number, since it uses as much as digits as its factorization.

1215006988799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 65.

The spelling of 1215006988799 in words is "one trillion, two hundred fifteen billion, six million, nine hundred eighty-eight thousand, seven hundred ninety-nine".