1209252452044 has 48 divisors (see below), whose sum is σ = 2610423422208. Its totient is φ = 477305644608.

The previous prime is 1209252452027. The next prime is 1209252452113. The reversal of 1209252452044 is 4402542529021.

It is a junction number, because it is equal to n+sod(n) for n = 1209252451988 and 1209252452006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3588322 + ... + 3910825.

It is an arithmetic number, because the mean of its divisors is an integer number (54383821296).

Almost surely, 2^{1209252452044} is an apocalyptic number.

1209252452044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1209252452044 is an abundant number, since it is smaller than the sum of its proper divisors (1401170970164).

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

1209252452044 is a wasteful number, since it uses less digits than its factorization.

1209252452044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499614 (or 7499612 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 1209252452044 in words is "one trillion, two hundred nine billion, two hundred fifty-two million, four hundred fifty-two thousand, forty-four".