1248729199954 has 16 divisors (see below), whose sum is σ = 1912991851008. Its totient is φ = 611065874592.

The previous prime is 1248729199943. The next prime is 1248729199961. The reversal of 1248729199954 is 4599919278421.

It is a super-2 number, since 2×1248729199954² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641262 + ... + 4902934.

It is an arithmetic number, because the mean of its divisors is an integer number (119561990688).

Almost surely, 2^{1248729199954} is an apocalyptic number.

1248729199954 is a deficient number, since it is larger than the sum of its proper divisors (664262651054).

1248729199954 is a wasteful number, since it uses less digits than its factorization.

1248729199954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312489.

The product of its digits is 117573120, while the sum is 70.

The spelling of 1248729199954 in words is "one trillion, two hundred forty-eight billion, seven hundred twenty-nine million, one hundred ninety-nine thousand, nine hundred fifty-four".