1268971077 has 8 divisors (see below), whose sum is σ = 1845776160. Its totient is φ = 769073360.

The previous prime is 1268971051. The next prime is 1268971079. The reversal of 1268971077 is 7701798621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1268971077 - 2⁶ = 1268971013 is a prime.

It is a super-2 number, since 2×1268971077² = 3220575188525079858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268971079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19226802 + ... + 19226867.

It is an arithmetic number, because the mean of its divisors is an integer number (230722020).

Almost surely, 2^1268971077 is an apocalyptic number.

It is an amenable number.

1268971077 is a deficient number, since it is larger than the sum of its proper divisors (576805083).

1268971077 is a wasteful number, since it uses less digits than its factorization.

1268971077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38453683.

The product of its (nonzero) digits is 296352, while the sum is 48.

The square root of 1268971077 is about 35622.6202994670. The cubic root of 1268971077 is about 1082.6395987564.

The spelling of 1268971077 in words is "one billion, two hundred sixty-eight million, nine hundred seventy-one thousand, seventy-seven".