21700048190292 has 36 divisors (see below), whose sum is σ = 54855007398100. Its totient is φ = 7233071444352.

The previous prime is 21700048190273. The next prime is 21700048190297. The reversal of 21700048190292 is 29209184000712.

21700048190292 is a `hidden beast` number, since 2 + 170 + 0 + 0 + 4 + 8 + 190 + 292 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14389913907216 + 7310134283076 = 3793404^2 + 2703726^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21700048190297) 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, 10630417 + ... + 12506232.

Almost surely, 2^{21700048190292} is an apocalyptic number.

It is an amenable number.

21700048190292 is an abundant number, since it is smaller than the sum of its proper divisors (33154959207808).

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

21700048190292 is a wasteful number, since it uses less digits than its factorization.

21700048190292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23162712 (or 23162707 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 21700048190292 in words is "twenty-one trillion, seven hundred billion, forty-eight million, one hundred ninety thousand, two hundred ninety-two".