33481243977 has 4 divisors (see below), whose sum is σ = 44641658640. Its totient is φ = 22320829316.

The previous prime is 33481243951. The next prime is 33481243981. The reversal of 33481243977 is 77934218433.

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: 77934218433 = 3 ⋅25978072811.

It is a cyclic number.

It is not a de Polignac number, because 33481243977 - 2¹⁶ = 33481178441 is a prime.

It is a super-2 number, since 2×33481243977² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33481243177) 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, 5580207327 + ... + 5580207332.

It is an arithmetic number, because the mean of its divisors is an integer number (11160414660).

Almost surely, 2^33481243977 is an apocalyptic number.

It is an amenable number.

33481243977 is a deficient number, since it is larger than the sum of its proper divisors (11160414663).

33481243977 is a wasteful number, since it uses less digits than its factorization.

33481243977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160414662.

The product of its digits is 3048192, while the sum is 51.

The spelling of 33481243977 in words is "thirty-three billion, four hundred eighty-one million, two hundred forty-three thousand, nine hundred seventy-seven".