20249604370 has 16 divisors (see below), whose sum is σ = 36450940248. Its totient is φ = 8099474560.

The previous prime is 20249604359. The next prime is 20249604377. The reversal of 20249604370 is 7340694202.

It can be written as a sum of positive squares in 4 ways, for example, as 19169233209 + 1080371161 = 138453^2 + 32869^2 .

It is not an unprimeable number, because it can be changed into a prime (20249604377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341100 + ... + 396040.

Almost surely, 2^20249604370 is an apocalyptic number.

20249604370 is a deficient number, since it is larger than the sum of its proper divisors (16201335878).

20249604370 is a wasteful number, since it uses less digits than its factorization.

20249604370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91805.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 20249604370 in words is "twenty billion, two hundred forty-nine million, six hundred four thousand, three hundred seventy".