61276873887 has 12 divisors (see below), whose sum is σ = 89577439224. Its totient is φ = 40359065040.

The previous prime is 61276873871. The next prime is 61276873909. The reversal of 61276873887 is 78837867216.

61276873887 is a `hidden beast` number, since 612 + 7 + 6 + 8 + 7 + 3 + 8 + 8 + 7 = 666.

61276873887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61276873887 - 2⁴ = 61276873871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61276873187) 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, 41014564 + ... + 41016057.

It is an arithmetic number, because the mean of its divisors is an integer number (7464786602).

Almost surely, 2^61276873887 is an apocalyptic number.

61276873887 is a deficient number, since it is larger than the sum of its proper divisors (28300565337).

61276873887 is a wasteful number, since it uses less digits than its factorization.

61276873887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82030710 (or 82030707 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 61276873887 in words is "sixty-one billion, two hundred seventy-six million, eight hundred seventy-three thousand, eight hundred eighty-seven".