268969977 has 30 divisors (see below), whose sum is σ = 407029722. Its totient is φ = 177005088.

The previous prime is 268969973. The next prime is 268969979. The reversal of 268969977 is 779969862.

It can be written as a sum of positive squares in only one way, i.e., 145226601 + 123743376 = 12051^2 + 11124^2 .

It is not a de Polignac number, because 268969977 - 2² = 268969973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268969973) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 859173 + ... + 859485.

Almost surely, 2^268969977 is an apocalyptic number.

268969977 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

268969977 is a deficient number, since it is larger than the sum of its proper divisors (138059745).

268969977 is an equidigital number, since it uses as much as digits as its factorization.

268969977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 419 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 63.

The square root of 268969977 is about 16400.3041740085. The cubic root of 268969977 is about 645.5074643495.

The spelling of 268969977 in words is "two hundred sixty-eight million, nine hundred sixty-nine thousand, nine hundred seventy-seven".