1249748483812 has 12 divisors (see below), whose sum is σ = 2217019571116. Its totient is φ = 616314320640.

The previous prime is 1249748483783. The next prime is 1249748483827. The reversal of 1249748483812 is 2183848479421.

It can be written as a sum of positive squares in 2 ways, for example, as 270333444096 + 979415039716 = 519936^2 + 989654^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139979989 + ... + 2139980572.

Almost surely, 2^{1249748483812} is an apocalyptic number.

It is an amenable number.

1249748483812 is a deficient number, since it is larger than the sum of its proper divisors (967271087304).

1249748483812 is a wasteful number, since it uses less digits than its factorization.

1249748483812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279960638 (or 4279960636 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 61.

The spelling of 1249748483812 in words is "one trillion, two hundred forty-nine billion, seven hundred forty-eight million, four hundred eighty-three thousand, eight hundred twelve".