20486135374 has 8 divisors (see below), whose sum is σ = 32065255440. Its totient is φ = 9797716896.

The previous prime is 20486135333. The next prime is 20486135377. The reversal of 20486135374 is 47353168402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20486135374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20486135377) 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, 222675339 + ... + 222675430.

It is an arithmetic number, because the mean of its divisors is an integer number (4008156930).

Almost surely, 2^20486135374 is an apocalyptic number.

20486135374 is a deficient number, since it is larger than the sum of its proper divisors (11579120066).

20486135374 is a wasteful number, since it uses less digits than its factorization.

20486135374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445350794.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20486135374 in words is "twenty billion, four hundred eighty-six million, one hundred thirty-five thousand, three hundred seventy-four".