71018775768 has 16 divisors (see below), whose sum is σ = 177546939480. Its totient is φ = 23672925248.

The previous prime is 71018775767. The next prime is 71018775769. The reversal of 71018775768 is 86757781017.

It is an interprime number because it is at equal distance from previous prime (71018775767) and next prime (71018775769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71018775767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1479557805 + ... + 1479557852.

Almost surely, 2^71018775768 is an apocalyptic number.

It is an amenable number.

71018775768 is an abundant number, since it is smaller than the sum of its proper divisors (106528163712).

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

71018775768 is a wasteful number, since it uses less digits than its factorization.

71018775768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959115666 (or 2959115662 counting only the distinct ones).

The product of its (nonzero) digits is 4609920, while the sum is 57.

The spelling of 71018775768 in words is "seventy-one billion, eighteen million, seven hundred seventy-five thousand, seven hundred sixty-eight".