2638697046 has 36 divisors (see below), whose sum is σ = 5374507572. Its totient is φ = 863669664.

The previous prime is 2638696999. The next prime is 2638697059. The reversal of 2638697046 is 6407968362.

It is a happy number.

2638697046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2638697046² = 13925444201138252232, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2638697046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8430186 + ... + 8430498.

It is an arithmetic number, because the mean of its divisors is an integer number (149291877).

Almost surely, 2^2638697046 is an apocalyptic number.

2638697046 is an abundant number, since it is smaller than the sum of its proper divisors (2735810526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2638697046 is an frugal number, since it uses more digits than its factorization.

2638697046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 2638697046 is about 51368.2493959060. The cubic root of 2638697046 is about 1381.8572357680.

The spelling of 2638697046 in words is "two billion, six hundred thirty-eight million, six hundred ninety-seven thousand, forty-six".