91000919146 has 16 divisors (see below), whose sum is σ = 142683119424. Its totient is φ = 43446737664.

The previous prime is 91000919111. The next prime is 91000919153. The reversal of 91000919146 is 64191900019.

It is a junction number, because it is equal to n+sod(n) for n = 91000919099 and 91000919108.

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, 1687740 + ... + 1740823.

It is an arithmetic number, because the mean of its divisors is an integer number (8917694964).

Almost surely, 2^91000919146 is an apocalyptic number.

91000919146 is a deficient number, since it is larger than the sum of its proper divisors (51682200278).

91000919146 is a wasteful number, since it uses less digits than its factorization.

91000919146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429165.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 91000919146 in words is "ninety-one billion, nine hundred nineteen thousand, one hundred forty-six".