20767282137 has 48 divisors (see below), whose sum is σ = 35647153152. Its totient is φ = 11400238080.

The previous prime is 20767282121. The next prime is 20767282139. The reversal of 20767282137 is 73128276702.

It is not a de Polignac number, because 20767282137 - 2⁴ = 20767282121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20767282092 and 20767282101.

It is not an unprimeable number, because it can be changed into a prime (20767282139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 228753 + ... + 306369.

It is an arithmetic number, because the mean of its divisors is an integer number (742649024).

Almost surely, 2^20767282137 is an apocalyptic number.

It is an amenable number.

20767282137 is a deficient number, since it is larger than the sum of its proper divisors (14879871015).

20767282137 is a wasteful number, since it uses less digits than its factorization.

20767282137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77798 (or 77795 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The spelling of 20767282137 in words is "twenty billion, seven hundred sixty-seven million, two hundred eighty-two thousand, one hundred thirty-seven".