33219448157 has 4 divisors (see below), whose sum is σ = 37965083616. Its totient is φ = 28473812700.

The previous prime is 33219448123. The next prime is 33219448169. The reversal of 33219448157 is 75184491233.

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: 75184491233 = 211 ⋅356324603.

It is a cyclic number.

It is not a de Polignac number, because 33219448157 - 2²⁰ = 33218399581 is a prime.

It is a super-2 number, since 2×33219448157² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33219448357) 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, 2372817719 + ... + 2372817732.

It is an arithmetic number, because the mean of its divisors is an integer number (9491270904).

Almost surely, 2^33219448157 is an apocalyptic number.

It is an amenable number.

33219448157 is a deficient number, since it is larger than the sum of its proper divisors (4745635459).

33219448157 is an equidigital number, since it uses as much as digits as its factorization.

33219448157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745635458.

The product of its digits is 725760, while the sum is 47.

The spelling of 33219448157 in words is "thirty-three billion, two hundred nineteen million, four hundred forty-eight thousand, one hundred fifty-seven".