20267617274 has 4 divisors (see below), whose sum is σ = 30401425914. Its totient is φ = 10133808636.

The previous prime is 20267617231. The next prime is 20267617301. The reversal of 20267617274 is 47271676202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17621235025 + 2646382249 = 132745^2 + 51443^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5066904317 + ... + 5066904320.

Almost surely, 2^20267617274 is an apocalyptic number.

20267617274 is a deficient number, since it is larger than the sum of its proper divisors (10133808640).

20267617274 is a wasteful number, since it uses less digits than its factorization.

20267617274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133808639.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 20267617274 in words is "twenty billion, two hundred sixty-seven million, six hundred seventeen thousand, two hundred seventy-four".