53320763943 has 32 divisors (see below), whose sum is σ = 83199200000. Its totient is φ = 33656868576.

The previous prime is 53320763939. The next prime is 53320764037. The reversal of 53320763943 is 34936702335.

53320763943 is a `hidden beast` number, since 5 + 3 + 3 + 2 + 0 + 7 + 639 + 4 + 3 = 666.

It is not a de Polignac number, because 53320763943 - 2² = 53320763939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53320761943) 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, 888708 + ... + 946806.

It is an arithmetic number, because the mean of its divisors is an integer number (2599975000).

Almost surely, 2^53320763943 is an apocalyptic number.

53320763943 is a deficient number, since it is larger than the sum of its proper divisors (29878436057).

53320763943 is a wasteful number, since it uses less digits than its factorization.

53320763943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59916 (or 59910 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 45.

The spelling of 53320763943 in words is "fifty-three billion, three hundred twenty million, seven hundred sixty-three thousand, nine hundred forty-three".