32378444157 has 4 divisors (see below), whose sum is σ = 43171258880. Its totient is φ = 21585629436.

The previous prime is 32378444101. The next prime is 32378444159. The reversal of 32378444157 is 75144487323.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32378444157 - 2⁸ = 32378443901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32378444159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5396407357 + ... + 5396407362.

It is an arithmetic number, because the mean of its divisors is an integer number (10792814720).

Almost surely, 2^32378444157 is an apocalyptic number.

It is an amenable number.

32378444157 is a deficient number, since it is larger than the sum of its proper divisors (10792814723).

32378444157 is a wasteful number, since it uses less digits than its factorization.

32378444157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792814722.

The product of its digits is 2257920, while the sum is 48.

The spelling of 32378444157 in words is "thirty-two billion, three hundred seventy-eight million, four hundred forty-four thousand, one hundred fifty-seven".