1549899493252 has 24 divisors (see below), whose sum is σ = 2958937007040. Its totient is φ = 704490728160.

The previous prime is 1549899493249. The next prime is 1549899493253. The reversal of 1549899493252 is 2523949989451.

It is a super-3 number, since 3×1549899493252³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1549899493253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4227033 + ... + 4579039.

It is an arithmetic number, because the mean of its divisors is an integer number (123289041960).

Almost surely, 2^{1549899493252} is an apocalyptic number.

It is an amenable number.

1549899493252 is a deficient number, since it is larger than the sum of its proper divisors (1409037513788).

1549899493252 is a wasteful number, since it uses less digits than its factorization.

1549899493252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452091 (or 452089 counting only the distinct ones).

The product of its digits is 251942400, while the sum is 70.

The spelling of 1549899493252 in words is "one trillion, five hundred forty-nine billion, eight hundred ninety-nine million, four hundred ninety-three thousand, two hundred fifty-two".