1572951974349 has 24 divisors (see below), whose sum is σ = 2446920098688. Its totient is φ = 896162520960.

The previous prime is 1572951974329. The next prime is 1572951974357. The reversal of 1572951974349 is 9434791592751.

It is not a de Polignac number, because 1572951974349 - 2⁵ = 1572951974317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1572951974349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572951974329) 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, 15826357 + ... + 15925434.

It is an arithmetic number, because the mean of its divisors is an integer number (101955004112).

Almost surely, 2^{1572951974349} is an apocalyptic number.

It is an amenable number.

1572951974349 is a deficient number, since it is larger than the sum of its proper divisors (873968124339).

1572951974349 is a wasteful number, since it uses less digits than its factorization.

1572951974349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31752145 (or 31752138 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 66.

The spelling of 1572951974349 in words is "one trillion, five hundred seventy-two billion, nine hundred fifty-one million, nine hundred seventy-four thousand, three hundred forty-nine".