91678670001 has 12 divisors (see below), whose sum is σ = 132430976080. Its totient is φ = 61116237720.

The previous prime is 91678669991. The next prime is 91678670023. The reversal of 91678670001 is 10007687619.

It is not a de Polignac number, because 91678670001 - 2⁵ = 91678669969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91678650001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27871 + ... + 429108.

Almost surely, 2^91678670001 is an apocalyptic number.

It is an amenable number.

91678670001 is a deficient number, since it is larger than the sum of its proper divisors (40752306079).

91678670001 is a wasteful number, since it uses less digits than its factorization.

91678670001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479276 (or 479273 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 91678670001 in words is "ninety-one billion, six hundred seventy-eight million, six hundred seventy thousand, one".