1249377145633 has 8 divisors (see below), whose sum is σ = 1258535151720. Its totient is φ = 1240219697280.

The previous prime is 1249377145613. The next prime is 1249377145637. The reversal of 1249377145633 is 3365417739421.

It can be written as a sum of positive squares in 4 ways, for example, as 377202332224 + 872174813409 = 614168^2 + 933903^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249377145633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249377145637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5066523 + ... + 5307391.

It is an arithmetic number, because the mean of its divisors is an integer number (157316893965).

Almost surely, 2^{1249377145633} is an apocalyptic number.

It is an amenable number.

1249377145633 is a deficient number, since it is larger than the sum of its proper divisors (9158006087).

1249377145633 is a wasteful number, since it uses less digits than its factorization.

1249377145633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278867.

The product of its digits is 11430720, while the sum is 55.

The spelling of 1249377145633 in words is "one trillion, two hundred forty-nine billion, three hundred seventy-seven million, one hundred forty-five thousand, six hundred thirty-three".