32138802457 has 4 divisors (see below), whose sum is σ = 32257396096. Its totient is φ = 32020208820.

The previous prime is 32138802433. The next prime is 32138802467. The reversal of 32138802457 is 75420883123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75420883123 = 8117 ⋅9291719.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32138802457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32138802407) 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, 59296413 + ... + 59296954.

It is an arithmetic number, because the mean of its divisors is an integer number (8064349024).

Almost surely, 2^32138802457 is an apocalyptic number.

It is an amenable number.

32138802457 is a deficient number, since it is larger than the sum of its proper divisors (118593639).

32138802457 is a wasteful number, since it uses less digits than its factorization.

32138802457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118593638.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 32138802457 in words is "thirty-two billion, one hundred thirty-eight million, eight hundred two thousand, four hundred fifty-seven".