19612220536 has 32 divisors (see below), whose sum is σ = 38428727040. Its totient is φ = 9374264928.

The previous prime is 19612220519. The next prime is 19612220549. The reversal of 19612220536 is 63502221691.

It is a junction number, because it is equal to n+sod(n) for n = 19612220495 and 19612220504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590346 + ... + 622681.

It is an arithmetic number, because the mean of its divisors is an integer number (1200897720).

Almost surely, 2^19612220536 is an apocalyptic number.

It is an amenable number.

19612220536 is a deficient number, since it is larger than the sum of its proper divisors (18816506504).

19612220536 is a wasteful number, since it uses less digits than its factorization.

19612220536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213123 (or 1213119 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 19612220536 in words is "nineteen billion, six hundred twelve million, two hundred twenty thousand, five hundred thirty-six".