61316625747 has 8 divisors (see below), whose sum is σ = 88044385744. Its totient is φ = 37733308128.

The previous prime is 61316625731. The next prime is 61316625757. The reversal of 61316625747 is 74752661316.

It is a happy number.

61316625747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 61316625747 - 2⁴ = 61316625731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61316625696 and 61316625705.

It is not an unprimeable number, because it can be changed into a prime (61316625757) 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, 786110548 + ... + 786110625.

It is an arithmetic number, because the mean of its divisors is an integer number (11005548218).

Almost surely, 2^61316625747 is an apocalyptic number.

61316625747 is a deficient number, since it is larger than the sum of its proper divisors (26727759997).

61316625747 is a wasteful number, since it uses less digits than its factorization.

61316625747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572221189.

The product of its digits is 1270080, while the sum is 48.

The spelling of 61316625747 in words is "sixty-one billion, three hundred sixteen million, six hundred twenty-five thousand, seven hundred forty-seven".