4661863902 has 64 divisors (see below), whose sum is σ = 10915200000. Its totient is φ = 1470783744.

The previous prime is 4661863889. The next prime is 4661863907. The reversal of 4661863902 is 2093681664.

4661863902 is a `hidden beast` number, since 4 + 6 + 6 + 1 + 8 + 639 + 0 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4661863907) 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, 2049838 + ... + 2052110.

It is an arithmetic number, because the mean of its divisors is an integer number (170550000).

Almost surely, 2^4661863902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4661863902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5457600000).

4661863902 is an abundant number, since it is smaller than the sum of its proper divisors (6253336098).

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

4661863902 is a wasteful number, since it uses less digits than its factorization.

4661863902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302 (or 4296 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 4661863902 is about 68277.8434193699. The cubic root of 4661863902 is about 1670.5258365388.

The spelling of 4661863902 in words is "four billion, six hundred sixty-one million, eight hundred sixty-three thousand, nine hundred two".