20247863134 has 8 divisors (see below), whose sum is σ = 31078115640. Its totient is φ = 9888491256.

The previous prime is 20247863131. The next prime is 20247863201. The reversal of 20247863134 is 43136874202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20247863134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20247863131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117720049 + ... + 117720220.

It is an arithmetic number, because the mean of its divisors is an integer number (3884764455).

Almost surely, 2^20247863134 is an apocalyptic number.

20247863134 is a deficient number, since it is larger than the sum of its proper divisors (10830252506).

20247863134 is a wasteful number, since it uses less digits than its factorization.

20247863134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235440314.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 20247863134 in words is "twenty billion, two hundred forty-seven million, eight hundred sixty-three thousand, one hundred thirty-four".