2637779490 has 48 divisors (see below), whose sum is σ = 6878072448. Its totient is φ = 701372448.

The previous prime is 2637779489. The next prime is 2637779497. The reversal of 2637779490 is 949777362.

It is not an unprimeable number, because it can be changed into a prime (2637779497) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11002 + ... + 73461.

It is an arithmetic number, because the mean of its divisors is an integer number (143293176).

Almost surely, 2^2637779490 is an apocalyptic number.

2637779490 is an abundant number, since it is smaller than the sum of its proper divisors (4240292958).

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

2637779490 is a wasteful number, since it uses less digits than its factorization.

2637779490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84823 (or 84820 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 54.

The square root of 2637779490 is about 51359.3174604180. The cubic root of 2637779490 is about 1381.6970457992.

The spelling of 2637779490 in words is "two billion, six hundred thirty-seven million, seven hundred seventy-nine thousand, four hundred ninety".