4921661294 has 16 divisors (see below), whose sum is σ = 8071038720. Its totient is φ = 2232282360.

The previous prime is 4921661291. The next prime is 4921661309.

4921661294 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921661291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231404 + ... + 251775.

It is an arithmetic number, because the mean of its divisors is an integer number (504439920).

Almost surely, 2^4921661294 is an apocalyptic number.

4921661294 is a deficient number, since it is larger than the sum of its proper divisors (3149377426).

4921661294 is a wasteful number, since it uses less digits than its factorization.

4921661294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483655.

The product of its digits is 186624, while the sum is 44.

The square root of 4921661294 is about 70154.5529099858. The cubic root of 4921661294 is about 1700.9984093675.

The spelling of 4921661294 in words is "four billion, nine hundred twenty-one million, six hundred sixty-one thousand, two hundred ninety-four".