61830440246871 has 12 divisors (see below), whose sum is σ = 89347223668560. Its totient is φ = 41203406841120.

The previous prime is 61830440246777. The next prime is 61830440246873. The reversal of 61830440246871 is 17864204403816.

61830440246871 is a `hidden beast` number, since 6 + 1 + 83 + 0 + 440 + 2 + 46 + 87 + 1 = 666.

It is not a de Polignac number, because 61830440246871 - 2⁹ = 61830440246359 is a prime.

It is a super-2 number, since 2×61830440246871² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61830440246873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1407198211 + ... + 1407242148.

It is an arithmetic number, because the mean of its divisors is an integer number (7445601972380).

Almost surely, 2^{61830440246871} is an apocalyptic number.

61830440246871 is a deficient number, since it is larger than the sum of its proper divisors (27516783421689).

61830440246871 is a wasteful number, since it uses less digits than its factorization.

61830440246871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814442806 (or 2814442803 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 61830440246871 in words is "sixty-one trillion, eight hundred thirty billion, four hundred forty million, two hundred forty-six thousand, eight hundred seventy-one".