9051399894 has 16 divisors (see below), whose sum is σ = 18268881840. Its totient is φ = 2989452960.

The previous prime is 9051399887. The next prime is 9051399937. The reversal of 9051399894 is 4989931509.

It is a super-2 number, since 2×9051399894² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 6919377 + ... + 6920684.

It is an arithmetic number, because the mean of its divisors is an integer number (1141805115).

Almost surely, 2^9051399894 is an apocalyptic number.

9051399894 is an abundant number, since it is smaller than the sum of its proper divisors (9217481946).

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

9051399894 is a wasteful number, since it uses less digits than its factorization.

9051399894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13840175.

The product of its (nonzero) digits is 3149280, while the sum is 57.

The square root of 9051399894 is about 95138.8453472082. The cubic root of 9051399894 is about 2084.0361636156.

The spelling of 9051399894 in words is "nine billion, fifty-one million, three hundred ninety-nine thousand, eight hundred ninety-four".