2912638634 has 8 divisors (see below), whose sum is σ = 4388037060. Its totient is φ = 1449959616.

The previous prime is 2912638633. The next prime is 2912638637. The reversal of 2912638634 is 4368362192.

It can be written as a sum of positive squares in 2 ways, for example, as 2416017409 + 496621225 = 49153^2 + 22285^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2912638633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3179279 + ... + 3180194.

Almost surely, 2^2912638634 is an apocalyptic number.

2912638634 is a deficient number, since it is larger than the sum of its proper divisors (1475398426).

2912638634 is a wasteful number, since it uses less digits than its factorization.

2912638634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359704.

The product of its digits is 373248, while the sum is 44.

The square root of 2912638634 is about 53968.8672662304. The cubic root of 2912638634 is about 1428.1117813906. Note that the first 3 decimals are identical.

The spelling of 2912638634 in words is "two billion, nine hundred twelve million, six hundred thirty-eight thousand, six hundred thirty-four".