20134770742 has 4 divisors (see below), whose sum is σ = 30202156116. Its totient is φ = 10067385370.

The previous prime is 20134770707. The next prime is 20134770751. The reversal of 20134770742 is 24707743102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5033692684 + ... + 5033692687.

It is an arithmetic number, because the mean of its divisors is an integer number (7550539029).

Almost surely, 2^20134770742 is an apocalyptic number.

20134770742 is a deficient number, since it is larger than the sum of its proper divisors (10067385374).

20134770742 is a wasteful number, since it uses less digits than its factorization.

20134770742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067385373.

The product of its (nonzero) digits is 65856, while the sum is 37.

The spelling of 20134770742 in words is "twenty billion, one hundred thirty-four million, seven hundred seventy thousand, seven hundred forty-two".