1245864910015 has 48 divisors (see below), whose sum is σ = 1706685664320. Its totient is φ = 871687872000.

The previous prime is 1245864909959. The next prime is 1245864910033. The reversal of 1245864910015 is 5100194685421.

It is a de Polignac number, because none of the positive numbers 2^k-1245864910015 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1679590 + ... + 2304940.

It is an arithmetic number, because the mean of its divisors is an integer number (35555951340).

Almost surely, 2^{1245864910015} is an apocalyptic number.

1245864910015 is a deficient number, since it is larger than the sum of its proper divisors (460820754305).

1245864910015 is a wasteful number, since it uses less digits than its factorization.

1245864910015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625504 (or 625493 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 1245864910015 in words is "one trillion, two hundred forty-five billion, eight hundred sixty-four million, nine hundred ten thousand, fifteen".