1245884580864 has 891 divisors, whose sum is σ = 4630492107423. Its totient is φ = 321463296000.

The previous prime is 1245884580833. The next prime is 1245884580949. The reversal of 1245884580864 is 4680854885421.

The square root of 1245884580864 is 1116192.

It is a perfect power (a square), and thus also a powerful number.

1245884580864 is a `hidden beast` number, since 1 + 2 + 4 + 588 + 45 + 8 + 0 + 8 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 8250891189 + ... + 8250891339.

Almost surely, 2^{1245884580864} is an apocalyptic number.

1245884580864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1245884580864 is the 1116192-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245884580864

1245884580864 is an abundant number, since it is smaller than the sum of its proper divisors (3384607526559).

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

1245884580864 is a wasteful number, since it uses less digits than its factorization.

1245884580864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 78643200, while the sum is 63.

The spelling of 1245884580864 in words is "one trillion, two hundred forty-five billion, eight hundred eighty-four million, five hundred eighty thousand, eight hundred sixty-four".