19963996258 has 32 divisors (see below), whose sum is σ = 31020941952. Its totient is φ = 9629692800.

The previous prime is 19963996243. The next prime is 19963996259. The reversal of 19963996258 is 85269936991.

It is a super-2 number, since 2×19963996258² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19963996193 and 19963996202.

It is not an unprimeable number, because it can be changed into a prime (19963996259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3144235 + ... + 3150577.

It is an arithmetic number, because the mean of its divisors is an integer number (969404436).

Almost surely, 2^19963996258 is an apocalyptic number.

19963996258 is a deficient number, since it is larger than the sum of its proper divisors (11056945694).

19963996258 is a wasteful number, since it uses less digits than its factorization.

19963996258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810.

The product of its digits is 56687040, while the sum is 67.

The spelling of 19963996258 in words is "nineteen billion, nine hundred sixty-three million, nine hundred ninety-six thousand, two hundred fifty-eight".