9875400893 has 4 divisors (see below), whose sum is σ = 9882034620. Its totient is φ = 9868767168.

The previous prime is 9875400883. The next prime is 9875400901. The reversal of 9875400893 is 3980045789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3980045789 = 6763 ⋅588503.

It can be written as a sum of positive squares in 2 ways, for example, as 1241646169 + 8633754724 = 35237^2 + 92918^2 .

It is a cyclic number.

It is not a de Polignac number, because 9875400893 - 2⁴ = 9875400877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9875400833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3314630 + ... + 3317607.

It is an arithmetic number, because the mean of its divisors is an integer number (2470508655).

Almost surely, 2^9875400893 is an apocalyptic number.

It is an amenable number.

9875400893 is a deficient number, since it is larger than the sum of its proper divisors (6633727).

9875400893 is a wasteful number, since it uses less digits than its factorization.

9875400893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633726.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 9875400893 is about 99375.0516628797. The cubic root of 9875400893 is about 2145.4492454897.

The spelling of 9875400893 in words is "nine billion, eight hundred seventy-five million, four hundred thousand, eight hundred ninety-three".