61381733283 has 64 divisors (see below), whose sum is σ = 99891792000. Its totient is φ = 37018695168.

The previous prime is 61381733261. The next prime is 61381733363. The reversal of 61381733283 is 38233718316.

61381733283 is a `hidden beast` number, since 613 + 8 + 1 + 7 + 3 + 3 + 28 + 3 = 666.

It is not a de Polignac number, because 61381733283 - 2⁵ = 61381733251 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (61381733243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26582533 + ... + 26584841.

It is an arithmetic number, because the mean of its divisors is an integer number (1560809250).

Almost surely, 2^61381733283 is an apocalyptic number.

61381733283 is a deficient number, since it is larger than the sum of its proper divisors (38510058717).

61381733283 is a wasteful number, since it uses less digits than its factorization.

61381733283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3807 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 61381733283 in words is "sixty-one billion, three hundred eighty-one million, seven hundred thirty-three thousand, two hundred eighty-three".