20276031785 has 8 divisors (see below), whose sum is σ = 24332749056. Its totient is φ = 16219818160.

The previous prime is 20276031749. The next prime is 20276031791. The reversal of 20276031785 is 58713067202.

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

It is not a de Polignac number, because 20276031785 - 2¹² = 20276027689 is a prime.

It is a super-2 number, since 2×20276031785² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30809 + ... + 203718.

It is an arithmetic number, because the mean of its divisors is an integer number (3041593632).

Almost surely, 2^20276031785 is an apocalyptic number.

It is an amenable number.

20276031785 is a deficient number, since it is larger than the sum of its proper divisors (4056717271).

20276031785 is a wasteful number, since it uses less digits than its factorization.

20276031785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251823.

The product of its (nonzero) digits is 141120, while the sum is 41.

Adding to 20276031785 its reverse (58713067202), we get a palindrome (78989098987).

The spelling of 20276031785 in words is "twenty billion, two hundred seventy-six million, thirty-one thousand, seven hundred eighty-five".