61125867947 has 8 divisors (see below), whose sum is σ = 64904860656. Its totient is φ = 57367247872.

The previous prime is 61125867931. The next prime is 61125867953. The reversal of 61125867947 is 74976852116.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61125867947 - 2⁴ = 61125867931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61125867892 and 61125867901.

It is not an unprimeable number, because it can be changed into a prime (61125867547) 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, 5086973 + ... + 5098974.

It is an arithmetic number, because the mean of its divisors is an integer number (8113107582).

Almost surely, 2^61125867947 is an apocalyptic number.

61125867947 is a deficient number, since it is larger than the sum of its proper divisors (3778992709).

61125867947 is a wasteful number, since it uses less digits than its factorization.

61125867947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10186317.

The product of its digits is 5080320, while the sum is 56.

The spelling of 61125867947 in words is "sixty-one billion, one hundred twenty-five million, eight hundred sixty-seven thousand, nine hundred forty-seven".