4951373891 has 8 divisors (see below), whose sum is σ = 4994072160. Its totient is φ = 4908851712.

The previous prime is 4951373851. The next prime is 4951373923. The reversal of 4951373891 is 1983731594.

4951373891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4951373891 is a prime.

It is a super-2 number, since 2×4951373891² = 49032206816952959762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4951373821) 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, 12770 + ... + 100328.

It is an arithmetic number, because the mean of its divisors is an integer number (624259020).

Almost surely, 2^4951373891 is an apocalyptic number.

4951373891 is a deficient number, since it is larger than the sum of its proper divisors (42698269).

4951373891 is a wasteful number, since it uses less digits than its factorization.

4951373891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88045.

The product of its digits is 816480, while the sum is 50.

The square root of 4951373891 is about 70365.9995381292. Note that the first 3 decimals coincide. The cubic root of 4951373891 is about 1704.4145805659.

The spelling of 4951373891 in words is "four billion, nine hundred fifty-one million, three hundred seventy-three thousand, eight hundred ninety-one".