61768031133 has 32 divisors (see below), whose sum is σ = 91306828800. Its totient is φ = 36966416256.

The previous prime is 61768031113. The next prime is 61768031167. The reversal of 61768031133 is 33113086716.

It is not a de Polignac number, because 61768031133 - 2¹³ = 61768022941 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61768031091 and 61768031100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61768031113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79888 + ... + 360441.

It is an arithmetic number, because the mean of its divisors is an integer number (2853338400).

Almost surely, 2^61768031133 is an apocalyptic number.

It is an amenable number.

61768031133 is a deficient number, since it is larger than the sum of its proper divisors (29538797667).

61768031133 is a wasteful number, since it uses less digits than its factorization.

61768031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440481.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 61768031133 in words is "sixty-one billion, seven hundred sixty-eight million, thirty-one thousand, one hundred thirty-three".