2686216470 has 64 divisors (see below), whose sum is σ = 7375726080. Its totient is φ = 613340928.

The previous prime is 2686216469. The next prime is 2686216471. The reversal of 2686216470 is 746126862.

It is an interprime number because it is at equal distance from previous prime (2686216469) and next prime (2686216471).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686216471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207714 + ... + 220266.

It is an arithmetic number, because the mean of its divisors is an integer number (115245720).

Almost surely, 2^2686216470 is an apocalyptic number.

2686216470 is an abundant number, since it is smaller than the sum of its proper divisors (4689509610).

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

2686216470 is a wasteful number, since it uses less digits than its factorization.

2686216470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13589.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2686216470 is about 51828.7224422906. The cubic root of 2686216470 is about 1390.1030701825.

The spelling of 2686216470 in words is "two billion, six hundred eighty-six million, two hundred sixteen thousand, four hundred seventy".