20362347542 has 4 divisors (see below), whose sum is σ = 30543521316. Its totient is φ = 10181173770.

The previous prime is 20362347541. The next prime is 20362347547. The reversal of 20362347542 is 24574326302.

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

It is a junction number, because it is equal to n+sod(n) for n = 20362347496 and 20362347505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20362347541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5090586884 + ... + 5090586887.

It is an arithmetic number, because the mean of its divisors is an integer number (7635880329).

Almost surely, 2^20362347542 is an apocalyptic number.

20362347542 is a deficient number, since it is larger than the sum of its proper divisors (10181173774).

20362347542 is a wasteful number, since it uses less digits than its factorization.

20362347542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10181173773.

The product of its (nonzero) digits is 241920, while the sum is 38.

The spelling of 20362347542 in words is "twenty billion, three hundred sixty-two million, three hundred forty-seven thousand, five hundred forty-two".