32753442157 has 4 divisors (see below), whose sum is σ = 32753811580. Its totient is φ = 32753072736.

The previous prime is 32753442103. The next prime is 32753442167. The reversal of 32753442157 is 75124435723.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75124435723 = 191 ⋅393321653.

It can be written as a sum of positive squares in 2 ways, for example, as 3669209476 + 29084232681 = 60574^2 + 170541^2 .

It is a 3-Lehmer number, since φ(32753442157) divides (32753442157-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32753442157 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 (32753442167) 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, 36943 + ... + 258595.

It is an arithmetic number, because the mean of its divisors is an integer number (8188452895).

It is a Poulet number, since it divides 2^32753442156-1.

Almost surely, 2^32753442157 is an apocalyptic number.

32753442157 is the 147769-th pentagonal number.

It is an amenable number.

32753442157 is a deficient number, since it is larger than the sum of its proper divisors (369423).

32753442157 is a wasteful number, since it uses less digits than its factorization.

32753442157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369422.

The product of its digits is 705600, while the sum is 43.

The spelling of 32753442157 in words is "thirty-two billion, seven hundred fifty-three million, four hundred forty-two thousand, one hundred fifty-seven".