32420504157 has 4 divisors (see below), whose sum is σ = 43227338880. Its totient is φ = 21613669436.

The previous prime is 32420504153. The next prime is 32420504173. The reversal of 32420504157 is 75140502423.

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 a cyclic number.

It is not a de Polignac number, because 32420504157 - 2² = 32420504153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32420504153) 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, 5403417357 + ... + 5403417362.

It is an arithmetic number, because the mean of its divisors is an integer number (10806834720).

Almost surely, 2^32420504157 is an apocalyptic number.

It is an amenable number.

32420504157 is a deficient number, since it is larger than the sum of its proper divisors (10806834723).

32420504157 is a wasteful number, since it uses less digits than its factorization.

32420504157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806834722.

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 32420504157 in words is "thirty-two billion, four hundred twenty million, five hundred four thousand, one hundred fifty-seven".