1252625152638 has 8 divisors (see below), whose sum is σ = 2505250305288. Its totient is φ = 417541717544.

The previous prime is 1252625152637. The next prime is 1252625152693. The reversal of 1252625152638 is 8362515262521.

It is a sphenic number, since it is the product of 3 distinct primes.

1252625152638 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252625152637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 104385429381 + ... + 104385429392.

It is an arithmetic number, because the mean of its divisors is an integer number (313156288161).

Almost surely, 2^{1252625152638} is an apocalyptic number.

1252625152638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1252625152638 is a wasteful number, since it uses less digits than its factorization.

1252625152638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208770858778.

The product of its digits is 1728000, while the sum is 48.

The spelling of 1252625152638 in words is "one trillion, two hundred fifty-two billion, six hundred twenty-five million, one hundred fifty-two thousand, six hundred thirty-eight".