2491501846 has 4 divisors (see below), whose sum is σ = 3737252772. Its totient is φ = 1245750922.

The previous prime is 2491501823. The next prime is 2491501847. The reversal of 2491501846 is 6481051942.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2491501799 and 2491501808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491501847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622875460 + ... + 622875463.

It is an arithmetic number, because the mean of its divisors is an integer number (934313193).

Almost surely, 2^2491501846 is an apocalyptic number.

2491501846 is a deficient number, since it is larger than the sum of its proper divisors (1245750926).

2491501846 is a wasteful number, since it uses less digits than its factorization.

2491501846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245750925.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 2491501846 is about 49914.9461183722. The cubic root of 2491501846 is about 1355.6692265687.

The spelling of 2491501846 in words is "two billion, four hundred ninety-one million, five hundred one thousand, eight hundred forty-six".