33507542138 has 16 divisors (see below), whose sum is σ = 58777350720. Its totient is φ = 14026412736.

The previous prime is 33507542083. The next prime is 33507542149. The reversal of 33507542138 is 83124570533.

It is a super-2 number, since 2×33507542138² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33507542095 and 33507542104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27829583 + ... + 27830786.

It is an arithmetic number, because the mean of its divisors is an integer number (3673584420).

Almost surely, 2^33507542138 is an apocalyptic number.

33507542138 is a deficient number, since it is larger than the sum of its proper divisors (25269808582).

33507542138 is a wasteful number, since it uses less digits than its factorization.

33507542138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55660421.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 33507542138 in words is "thirty-three billion, five hundred seven million, five hundred forty-two thousand, one hundred thirty-eight".