91983607683672 has 32 divisors (see below), whose sum is σ = 229959618634800. Its totient is φ = 30661122637824.

The previous prime is 91983607683661. The next prime is 91983607683683. The reversal of 91983607683672 is 27638670638919.

It is an interprime number because it is at equal distance from previous prime (91983607683661) and next prime (91983607683683).

It is a junction number, because it is equal to n+sod(n) for n = 91983607683594 and 91983607683603.

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, 4795404 + ... + 14386212.

Almost surely, 2^{91983607683672} is an apocalyptic number.

It is a pronic number, being equal to 9590808×9590809.

It is an amenable number.

91983607683672 is an abundant number, since it is smaller than the sum of its proper divisors (137976010951128).

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

91983607683672 is a wasteful number, since it uses less digits than its factorization.

91983607683672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990435 (or 9990431 counting only the distinct ones).

The product of its (nonzero) digits is 987614208, while the sum is 75.

The spelling of 91983607683672 in words is "ninety-one trillion, nine hundred eighty-three billion, six hundred seven million, six hundred eighty-three thousand, six hundred seventy-two".