6477760987 has 2 divisors, whose sum is σ = 6477760988. Its totient is φ = 6477760986.

The previous prime is 6477760973. The next prime is 6477760997. The reversal of 6477760987 is 7890677746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6477760987 - 2¹⁹ = 6477236699 is a prime.

It is a super-2 number, since 2×6477760987² = 83922774809398428338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6477760957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3238880493 + 3238880494.

It is an arithmetic number, because the mean of its divisors is an integer number (3238880494).

Almost surely, 2^6477760987 is an apocalyptic number.

6477760987 is a deficient number, since it is larger than the sum of its proper divisors (1).

6477760987 is an equidigital number, since it uses as much as digits as its factorization.

6477760987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24893568, while the sum is 61.

The square root of 6477760987 is about 80484.5388071523. The cubic root of 6477760987 is about 1864.1247524791.

The spelling of 6477760987 in words is "six billion, four hundred seventy-seven million, seven hundred sixty thousand, nine hundred eighty-seven".