19700542259 has 16 divisors (see below), whose sum is σ = 20954658528. Its totient is φ = 18457201152.

The previous prime is 19700542243. The next prime is 19700542283. The reversal of 19700542259 is 95224500791.

It is a cyclic number.

It is not a de Polignac number, because 19700542259 - 2⁴ = 19700542243 is a prime.

It is a super-2 number, since 2×19700542259² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19700542159) 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 15 ways as a sum of consecutive naturals, for example, 3991157 + ... + 3996089.

It is an arithmetic number, because the mean of its divisors is an integer number (1309666158).

Almost surely, 2^19700542259 is an apocalyptic number.

19700542259 is a deficient number, since it is larger than the sum of its proper divisors (1254116269).

19700542259 is a wasteful number, since it uses less digits than its factorization.

19700542259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 19700542259 in words is "nineteen billion, seven hundred million, five hundred forty-two thousand, two hundred fifty-nine".