5821640751 has 4 divisors (see below), whose sum is σ = 7762187672. Its totient is φ = 3881093832.

The previous prime is 5821640749. The next prime is 5821640767. The reversal of 5821640751 is 1570461285.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5821640751 - 2¹ = 5821640749 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 (5821640711) 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, 970273456 + ... + 970273461.

It is an arithmetic number, because the mean of its divisors is an integer number (1940546918).

Almost surely, 2^5821640751 is an apocalyptic number.

5821640751 is a deficient number, since it is larger than the sum of its proper divisors (1940546921).

5821640751 is a wasteful number, since it uses less digits than its factorization.

5821640751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940546920.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 5821640751 is about 76299.6772666831. The cubic root of 5821640751 is about 1798.9336019863.

The spelling of 5821640751 in words is "five billion, eight hundred twenty-one million, six hundred forty thousand, seven hundred fifty-one".