20274357207 has 32 divisors (see below), whose sum is σ = 29980339200. Its totient is φ = 12109698432.

The previous prime is 20274357203. The next prime is 20274357209. The reversal of 20274357207 is 70275347202.

It is not a de Polignac number, because 20274357207 - 2² = 20274357203 is a prime.

It is a super-2 number, since 2×20274357207² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274357203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126013 + ... + 237545.

It is an arithmetic number, because the mean of its divisors is an integer number (936885600).

Almost surely, 2^20274357207 is an apocalyptic number.

20274357207 is a deficient number, since it is larger than the sum of its proper divisors (9705981993).

20274357207 is a wasteful number, since it uses less digits than its factorization.

20274357207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111687.

The product of its (nonzero) digits is 164640, while the sum is 39.

The spelling of 20274357207 in words is "twenty billion, two hundred seventy-four million, three hundred fifty-seven thousand, two hundred seven".