862086497640 has 192 divisors, whose sum is σ = 2736404544960. Its totient is φ = 217242777600.

The previous prime is 862086497639. The next prime is 862086497641. The reversal of 862086497640 is 46794680268.

It is an interprime number because it is at equal distance from previous prime (862086497639) and next prime (862086497641).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (862086497641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17346507 + ... + 17396133.

It is an arithmetic number, because the mean of its divisors is an integer number (14252107005).

Almost surely, 2^862086497640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 862086497640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368202272480).

862086497640 is an abundant number, since it is smaller than the sum of its proper divisors (1874318047320).

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

862086497640 is a wasteful number, since it uses less digits than its factorization.

862086497640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50080 (or 50057 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 862086497640 in words is "eight hundred sixty-two billion, eighty-six million, four hundred ninety-seven thousand, six hundred forty".