33779551005 has 24 divisors (see below), whose sum is σ = 58555685760. Its totient is φ = 18014387040.

The previous prime is 33779550971. The next prime is 33779551019. The reversal of 33779551005 is 50015597733.

It is not a de Polignac number, because 33779551005 - 2¹⁰ = 33779549981 is a prime.

It is a super-2 number, since 2×33779551005² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 897720 + ... + 934590.

It is an arithmetic number, because the mean of its divisors is an integer number (2439820240).

Almost surely, 2^33779551005 is an apocalyptic number.

It is an amenable number.

33779551005 is a deficient number, since it is larger than the sum of its proper divisors (24776134755).

33779551005 is a wasteful number, since it uses less digits than its factorization.

33779551005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57241 (or 57238 counting only the distinct ones).

The product of its (nonzero) digits is 496125, while the sum is 45.

The spelling of 33779551005 in words is "thirty-three billion, seven hundred seventy-nine million, five hundred fifty-one thousand, five".