90142641432 has 48 divisors (see below), whose sum is σ = 245598247440. Its totient is φ = 29867617728.

The previous prime is 90142641419. The next prime is 90142641437. The reversal of 90142641432 is 23414624109.

90142641432 is a `hidden beast` number, since 9 + 0 + 1 + 4 + 2 + 641 + 4 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90142641437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3736423 + ... + 3760470.

It is an arithmetic number, because the mean of its divisors is an integer number (5116630155).

Almost surely, 2^90142641432 is an apocalyptic number.

It is an amenable number.

90142641432 is an abundant number, since it is smaller than the sum of its proper divisors (155455606008).

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

90142641432 is a wasteful number, since it uses less digits than its factorization.

90142641432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497072 (or 7497065 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 90142641432 in words is "ninety billion, one hundred forty-two million, six hundred forty-one thousand, four hundred thirty-two".