61575056847 has 40 divisors (see below), whose sum is σ = 92934545616. Its totient is φ = 40625929728.

The previous prime is 61575056827. The next prime is 61575056857. The reversal of 61575056847 is 74865057516.

It is a happy number.

61575056847 is a `hidden beast` number, since 6 + 1 + 5 + 75 + 0 + 568 + 4 + 7 = 666.

It is not a de Polignac number, because 61575056847 - 2¹² = 61575052751 is a prime.

It is a super-2 number, since 2×61575056847² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61575056793 and 61575056802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61575056827) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10510143 + ... + 10515999.

Almost surely, 2^61575056847 is an apocalyptic number.

61575056847 is a deficient number, since it is larger than the sum of its proper divisors (31359488769).

61575056847 is a wasteful number, since it uses less digits than its factorization.

61575056847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189 (or 7180 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 61575056847 in words is "sixty-one billion, five hundred seventy-five million, fifty-six thousand, eight hundred forty-seven".