971268918 has 32 divisors (see below), whose sum is σ = 1955874816. Its totient is φ = 321541248.

The previous prime is 971268911. The next prime is 971268919. The reversal of 971268918 is 819862179.

It is a super-2 number, since 2×971268918² = 1886726622145781448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971268911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 993646 + ... + 994622.

It is an arithmetic number, because the mean of its divisors is an integer number (61121088).

Almost surely, 2^971268918 is an apocalyptic number.

971268918 is an abundant number, since it is smaller than the sum of its proper divisors (984605898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971268918 is a wasteful number, since it uses less digits than its factorization.

971268918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948.

The product of its digits is 435456, while the sum is 51.

The square root of 971268918 is about 31165.1875977027. The cubic root of 971268918 is about 990.3297605688.

The spelling of 971268918 in words is "nine hundred seventy-one million, two hundred sixty-eight thousand, nine hundred eighteen".