61030386387 has 8 divisors (see below), whose sum is σ = 90415387280. Its totient is φ = 40686924240.

The previous prime is 61030386383. The next prime is 61030386413. The reversal of 61030386387 is 78368303016.

61030386387 is a `hidden beast` number, since 6 + 1 + 0 + 3 + 0 + 3 + 8 + 638 + 7 = 666.

It is not a de Polignac number, because 61030386387 - 2² = 61030386383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61030386383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130192314 + ... + 1130192367.

It is an arithmetic number, because the mean of its divisors is an integer number (11301923410).

Almost surely, 2^61030386387 is an apocalyptic number.

61030386387 is a deficient number, since it is larger than the sum of its proper divisors (29385000893).

61030386387 is a wasteful number, since it uses less digits than its factorization.

61030386387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260384690 (or 2260384684 counting only the distinct ones).

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

The spelling of 61030386387 in words is "sixty-one billion, thirty million, three hundred eighty-six thousand, three hundred eighty-seven".