153645449397 has 16 divisors (see below), whose sum is σ = 224855367168. Its totient is φ = 92547172080.

The previous prime is 153645449393. The next prime is 153645449423. The reversal of 153645449397 is 793944546351.

It is not a de Polignac number, because 153645449397 - 2² = 153645449393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153645449397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153645449393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14276593 + ... + 14287350.

It is an arithmetic number, because the mean of its divisors is an integer number (14053460448).

Almost surely, 2^153645449397 is an apocalyptic number.

It is an amenable number.

153645449397 is a deficient number, since it is larger than the sum of its proper divisors (71209917771).

153645449397 is a wasteful number, since it uses less digits than its factorization.

153645449397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28564120.

The product of its digits is 48988800, while the sum is 60.

It can be divided in two parts, 1536454 and 49397, that added together give a palindrome (1585851).

The spelling of 153645449397 in words is "one hundred fifty-three billion, six hundred forty-five million, four hundred forty-nine thousand, three hundred ninety-seven".