20315255734 has 8 divisors (see below), whose sum is σ = 32076719640. Its totient is φ = 9623015856.

The previous prime is 20315255693. The next prime is 20315255743. The reversal of 20315255734 is 43755251302.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 20315255693 and 20315255702.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 267305959 + ... + 267306034.

It is an arithmetic number, because the mean of its divisors is an integer number (4009589955).

Almost surely, 2^20315255734 is an apocalyptic number.

20315255734 is a deficient number, since it is larger than the sum of its proper divisors (11761463906).

20315255734 is a wasteful number, since it uses less digits than its factorization.

20315255734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534612014.

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 20315255734 in words is "twenty billion, three hundred fifteen million, two hundred fifty-five thousand, seven hundred thirty-four".