61256104319 has 8 divisors (see below), whose sum is σ = 62943411888. Its totient is φ = 59570467200.

The previous prime is 61256104237. The next prime is 61256104321. The reversal of 61256104319 is 91340165216.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61256104319 is a prime.

It is a super-2 number, since 2×61256104319² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61256104339) 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, 343082 + ... + 490119.

It is an arithmetic number, because the mean of its divisors is an integer number (7867926486).

Almost surely, 2^61256104319 is an apocalyptic number.

61256104319 is a deficient number, since it is larger than the sum of its proper divisors (1687307569).

61256104319 is a wasteful number, since it uses less digits than its factorization.

61256104319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835225.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 61256104319 in words is "sixty-one billion, two hundred fifty-six million, one hundred four thousand, three hundred nineteen".