1299927481508 has 12 divisors (see below), whose sum is σ = 2275046481792. Its totient is φ = 649914201000.

The previous prime is 1299927481507. The next prime is 1299927481529. The reversal of 1299927481508 is 8051847299921.

It is a super-2 number, since 2×1299927481508² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1299927481507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12325868 + ... + 12430883.

It is an arithmetic number, because the mean of its divisors is an integer number (189587206816).

Almost surely, 2^{1299927481508} is an apocalyptic number.

It is an amenable number.

1299927481508 is a deficient number, since it is larger than the sum of its proper divisors (975119000284).

1299927481508 is a wasteful number, since it uses less digits than its factorization.

1299927481508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24769882 (or 24769880 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 65.

The spelling of 1299927481508 in words is "one trillion, two hundred ninety-nine billion, nine hundred twenty-seven million, four hundred eighty-one thousand, five hundred eight".