61008856767 has 12 divisors (see below), whose sum is σ = 88610778984. Its totient is φ = 40447859760.

The previous prime is 61008856673. The next prime is 61008856813. The reversal of 61008856767 is 76765880016.

61008856767 is a `hidden beast` number, since 6 + 10 + 0 + 8 + 8 + 567 + 67 = 666.

It is not a de Polignac number, because 61008856767 - 2¹⁹ = 61008332479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61008856067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18724233 + ... + 18727490.

It is an arithmetic number, because the mean of its divisors is an integer number (7384231582).

Almost surely, 2^61008856767 is an apocalyptic number.

61008856767 is a deficient number, since it is larger than the sum of its proper divisors (27601922217).

61008856767 is a wasteful number, since it uses less digits than its factorization.

61008856767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37451910 (or 37451907 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 61008856767 in words is "sixty-one billion, eight million, eight hundred fifty-six thousand, seven hundred sixty-seven".