20753547342 has 32 divisors (see below), whose sum is σ = 45385588224. Its totient is φ = 6274353600.

The previous prime is 20753547313. The next prime is 20753547371. The reversal of 20753547342 is 24374535702.

It is an interprime number because it is at equal distance from previous prime (20753547313) and next prime (20753547371).

It is a junction number, because it is equal to n+sod(n) for n = 20753547294 and 20753547303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336343 + ... + 393234.

It is an arithmetic number, because the mean of its divisors is an integer number (1418299632).

Almost surely, 2^20753547342 is an apocalyptic number.

20753547342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20753547342 is an abundant number, since it is smaller than the sum of its proper divisors (24632040882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20753547342 is a wasteful number, since it uses less digits than its factorization.

20753547342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730024.

The product of its (nonzero) digits is 705600, while the sum is 42.

The spelling of 20753547342 in words is "twenty billion, seven hundred fifty-three million, five hundred forty-seven thousand, three hundred forty-two".