91819861743360 has 72 divisors (see below), whose sum is σ = 293249683455120. Its totient is φ = 24485296463872.

The previous prime is 91819861743359. The next prime is 91819861743367. The reversal of 91819861743360 is 6334716891819.

It is a junction number, because it is equal to n+sod(n) for n = 91819861743291 and 91819861743300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91819861743367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11955707325 + ... + 11955715004.

It is an arithmetic number, because the mean of its divisors is an integer number (4072912270210).

Almost surely, 2^{91819861743360} is an apocalyptic number.

It is an amenable number.

91819861743360 is an abundant number, since it is smaller than the sum of its proper divisors (201429821711760).

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

91819861743360 is a wasteful number, since it uses less digits than its factorization.

91819861743360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23911422353 (or 23911422339 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 91819861743360 in words is "ninety-one trillion, eight hundred nineteen billion, eight hundred sixty-one million, seven hundred forty-three thousand, three hundred sixty".