20674374015 has 8 divisors (see below), whose sum is σ = 33078998448. Its totient is φ = 11026332800.

The previous prime is 20674374011. The next prime is 20674374029. The reversal of 20674374015 is 51047347602.

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

It is not a de Polignac number, because 20674374015 - 2² = 20674374011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20674374011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689145786 + ... + 689145815.

It is an arithmetic number, because the mean of its divisors is an integer number (4134874806).

Almost surely, 2^20674374015 is an apocalyptic number.

20674374015 is a deficient number, since it is larger than the sum of its proper divisors (12404624433).

20674374015 is a wasteful number, since it uses less digits than its factorization.

20674374015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378291609.

The product of its (nonzero) digits is 141120, while the sum is 39.

The spelling of 20674374015 in words is "twenty billion, six hundred seventy-four million, three hundred seventy-four thousand, fifteen".