4921991294 has 12 divisors (see below), whose sum is σ = 8115184392. Its totient is φ = 2237268660.

The previous prime is 4921991281. The next prime is 4921991309.

4921991294 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10169162 + ... + 10169645.

It is an arithmetic number, because the mean of its divisors is an integer number (676265366).

Almost surely, 2^4921991294 is an apocalyptic number.

4921991294 is a deficient number, since it is larger than the sum of its proper divisors (3193193098).

4921991294 is a wasteful number, since it uses less digits than its factorization.

4921991294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20338831 (or 20338820 counting only the distinct ones).

The product of its digits is 419904, while the sum is 50.

The square root of 4921991294 is about 70156.9048205521. The cubic root of 4921991294 is about 1701.0364261330.

The spelling of 4921991294 in words is "four billion, nine hundred twenty-one million, nine hundred ninety-one thousand, two hundred ninety-four".