1245472031868 has 48 divisors (see below), whose sum is σ = 3104711675520. Its totient is φ = 387436699584.

The previous prime is 1245472031857. The next prime is 1245472031897. The reversal of 1245472031868 is 8681302745421.

It is a self number, because there is not a number n which added to its sum of digits gives 1245472031868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40750371 + ... + 40780922.

It is an arithmetic number, because the mean of its divisors is an integer number (64681493240).

Almost surely, 2^{1245472031868} is an apocalyptic number.

It is an amenable number.

1245472031868 is an abundant number, since it is smaller than the sum of its proper divisors (1859239643652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245472031868 is a wasteful number, since it uses less digits than its factorization.

1245472031868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81531386 (or 81531384 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 1245472031868 in words is "one trillion, two hundred forty-five billion, four hundred seventy-two million, thirty-one thousand, eight hundred sixty-eight".