863719535940 has 24 divisors (see below), whose sum is σ = 2418414700800. Its totient is φ = 230325209568.

The previous prime is 863719535933. The next prime is 863719536013. The reversal of 863719535940 is 49535917368.

It is a super-2 number, since 2×863719535940² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 14395325599 = 863719535940 / (8 + 6 + 3 + 7 + 1 + 9 + 5 + 3 + 5 + 9 + 4 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7197662740 + ... + 7197662859.

It is an arithmetic number, because the mean of its divisors is an integer number (100767279200).

Almost surely, 2^863719535940 is an apocalyptic number.

It is an amenable number.

863719535940 is an abundant number, since it is smaller than the sum of its proper divisors (1554695164860).

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

863719535940 is a wasteful number, since it uses less digits than its factorization.

863719535940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14395325611 (or 14395325609 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 863719535940 in words is "eight hundred sixty-three billion, seven hundred nineteen million, five hundred thirty-five thousand, nine hundred forty".