1245671222724 has 48 divisors (see below), whose sum is σ = 3244823816640. Its totient is φ = 413255848320.

The previous prime is 1245671222723. The next prime is 1245671222773. The reversal of 1245671222724 is 4272221765421.

1245671222724 is a `hidden beast` number, since 1 + 2 + 4 + 567 + 12 + 2 + 2 + 72 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1245671222724.

It is not an unprimeable number, because it can be changed into a prime (1245671222723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27308949 + ... + 27354524.

It is an arithmetic number, because the mean of its divisors is an integer number (67600496180).

Almost surely, 2^{1245671222724} is an apocalyptic number.

It is an amenable number.

1245671222724 is an abundant number, since it is smaller than the sum of its proper divisors (1999152593916).

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

1245671222724 is a wasteful number, since it uses less digits than its factorization.

1245671222724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54663697 (or 54663689 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The spelling of 1245671222724 in words is "one trillion, two hundred forty-five billion, six hundred seventy-one million, two hundred twenty-two thousand, seven hundred twenty-four".