154431412432 has 20 divisors (see below), whose sum is σ = 326411849376. Its totient is φ = 70196096480.

The previous prime is 154431412423. The next prime is 154431412433. The reversal of 154431412432 is 234214134451.

It is a super-2 number, since 2×154431412432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154431412433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438725428 + ... + 438725779.

Almost surely, 2^154431412432 is an apocalyptic number.

It is an amenable number.

154431412432 is an abundant number, since it is smaller than the sum of its proper divisors (171980436944).

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

154431412432 is a wasteful number, since it uses less digits than its factorization.

154431412432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877451226 (or 877451220 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

Adding to 154431412432 its reverse (234214134451), we get a palindrome (388645546883).

The spelling of 154431412432 in words is "one hundred fifty-four billion, four hundred thirty-one million, four hundred twelve thousand, four hundred thirty-two".