863246938540 has 36 divisors (see below), whose sum is σ = 2108788952256. Its totient is φ = 295970378592.

The previous prime is 863246938531. The next prime is 863246938559. The reversal of 863246938540 is 45839642368.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440431132 + ... + 440433091.

It is an arithmetic number, because the mean of its divisors is an integer number (58577470896).

Almost surely, 2^863246938540 is an apocalyptic number.

It is an amenable number.

863246938540 is an abundant number, since it is smaller than the sum of its proper divisors (1245542013716).

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

863246938540 is a wasteful number, since it uses less digits than its factorization.

863246938540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880864246 (or 880864237 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 58.

The spelling of 863246938540 in words is "eight hundred sixty-three billion, two hundred forty-six million, nine hundred thirty-eight thousand, five hundred forty".