91367505242 has 8 divisors (see below), whose sum is σ = 147593662356. Its totient is φ = 42169617792.

The previous prime is 91367505223. The next prime is 91367505323. The reversal of 91367505242 is 24250576319.

It can be written as a sum of positive squares in 2 ways, for example, as 89729603401 + 1637901841 = 299549^2 + 40471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 91367505193 and 91367505202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757067383 + ... + 1757067434.

Almost surely, 2^91367505242 is an apocalyptic number.

91367505242 is a deficient number, since it is larger than the sum of its proper divisors (56226157114).

91367505242 is a wasteful number, since it uses less digits than its factorization.

91367505242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514134832.

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 91367505242 in words is "ninety-one billion, three hundred sixty-seven million, five hundred five thousand, two hundred forty-two".