61406099860851 has 12 divisors (see below), whose sum is σ = 88698321951928. Its totient is φ = 40937112759744.

The previous prime is 61406099860811. The next prime is 61406099860981. The reversal of 61406099860851 is 15806899060416.

61406099860851 is a `hidden beast` number, since 6 + 1 + 406 + 0 + 9 + 98 + 60 + 85 + 1 = 666.

It is not a de Polignac number, because 61406099860851 - 2¹⁸ = 61406099598707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61406099860811) 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, 22570525 + ... + 25144398.

Almost surely, 2^{61406099860851} is an apocalyptic number.

61406099860851 is a deficient number, since it is larger than the sum of its proper divisors (27292222091077).

61406099860851 is a wasteful number, since it uses less digits than its factorization.

61406099860851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47857922 (or 47857919 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 61406099860851 in words is "sixty-one trillion, four hundred six billion, ninety-nine million, eight hundred sixty thousand, eight hundred fifty-one".