19000091628 has 108 divisors (see below), whose sum is σ = 57168831720. Its totient is φ = 5302329984.

The previous prime is 19000091573. The next prime is 19000091647. The reversal of 19000091628 is 82619000091.

It is a super-2 number, since 2×19000091628² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 19000091592 and 19000091601.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 49393 + ... + 201096.

Almost surely, 2^19000091628 is an apocalyptic number.

19000091628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19000091628 is an abundant number, since it is smaller than the sum of its proper divisors (38168740092).

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

19000091628 is a wasteful number, since it uses less digits than its factorization.

19000091628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250556 (or 250544 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 19000091628 in words is "nineteen billion, ninety-one thousand, six hundred twenty-eight".