6988464551 has 2 divisors, whose sum is σ = 6988464552. Its totient is φ = 6988464550.

The previous prime is 6988464523. The next prime is 6988464557. The reversal of 6988464551 is 1554648896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6988464551 - 2¹⁸ = 6988202407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6988464557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494232275 + 3494232276.

It is an arithmetic number, because the mean of its divisors is an integer number (3494232276).

Almost surely, 2^6988464551 is an apocalyptic number.

6988464551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6988464551 is an equidigital number, since it uses as much as digits as its factorization.

6988464551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8294400, while the sum is 56.

The square root of 6988464551 is about 83597.0367357600. The cubic root of 6988464551 is about 1911.8798183674.

The spelling of 6988464551 in words is "six billion, nine hundred eighty-eight million, four hundred sixty-four thousand, five hundred fifty-one".