1252984450680 has 48 divisors (see below), whose sum is σ = 4072199465880. Its totient is φ = 334129186752.

The previous prime is 1252984450667. The next prime is 1252984450777. The reversal of 1252984450680 is 860544892521.

1252984450680 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 98 + 44 + 506 + 8 + 0 = 666.

It is a super-2 number, since 2×1252984450680² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1740255822 + ... + 1740256541.

Almost surely, 2^{1252984450680} is an apocalyptic number.

1252984450680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252984450680 is an abundant number, since it is smaller than the sum of its proper divisors (2819215015200).

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

1252984450680 is a wasteful number, since it uses less digits than its factorization.

1252984450680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480512380 (or 3480512373 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 1252984450680 in words is "one trillion, two hundred fifty-two billion, nine hundred eighty-four million, four hundred fifty thousand, six hundred eighty".