4954972391 has 2 divisors, whose sum is σ = 4954972392. Its totient is φ = 4954972390.

The previous prime is 4954972387. The next prime is 4954972447. The reversal of 4954972391 is 1932794594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4954972391 - 2² = 4954972387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4954972381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2477486195 + 2477486196.

It is an arithmetic number, because the mean of its divisors is an integer number (2477486196).

Almost surely, 2^4954972391 is an apocalyptic number.

4954972391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4954972391 is an equidigital number, since it uses as much as digits as its factorization.

4954972391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2449440, while the sum is 53.

The square root of 4954972391 is about 70391.5647716401. The cubic root of 4954972391 is about 1704.8273852248.

The spelling of 4954972391 in words is "four billion, nine hundred fifty-four million, nine hundred seventy-two thousand, three hundred ninety-one".