1252621929504 has 144 divisors (see below), whose sum is σ = 3810469745376. Its totient is φ = 357253939200.

The previous prime is 1252621929497. The next prime is 1252621929509. The reversal of 1252621929504 is 4059291262521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1252621929509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1747057 + ... + 2357424.

It is an arithmetic number, because the mean of its divisors is an integer number (26461595454).

Almost surely, 2^{1252621929504} is an apocalyptic number.

It is an amenable number.

1252621929504 is an abundant number, since it is smaller than the sum of its proper divisors (2557847815872).

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

1252621929504 is a wasteful number, since it uses less digits than its factorization.

1252621929504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104539 (or 4104514 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 1252621929504 in words is "one trillion, two hundred fifty-two billion, six hundred twenty-one million, nine hundred twenty-nine thousand, five hundred four".