2634157949 has 2 divisors, whose sum is σ = 2634157950. Its totient is φ = 2634157948.

The previous prime is 2634157943. The next prime is 2634157963. The reversal of 2634157949 is 9497514362.

2634157949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2620416100 + 13741849 = 51190^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634157949 - 2²⁸ = 2365722493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2634157897 and 2634157906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2634157943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317078974 + 1317078975.

It is an arithmetic number, because the mean of its divisors is an integer number (1317078975).

Almost surely, 2^2634157949 is an apocalyptic number.

It is an amenable number.

2634157949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634157949 is an equidigital number, since it uses as much as digits as its factorization.

2634157949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The square root of 2634157949 is about 51324.0484470974. The cubic root of 2634157949 is about 1381.0644222495.

The spelling of 2634157949 in words is "two billion, six hundred thirty-four million, one hundred fifty-seven thousand, nine hundred forty-nine".