21435053392950 has 48 divisors (see below), whose sum is σ = 53756223823440. Its totient is φ = 5651789355520.

The previous prime is 21435053392931. The next prime is 21435053393011. The reversal of 21435053392950 is 5929335053412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21435053392893 and 21435053392902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 802797639 + ... + 802824338.

It is an arithmetic number, because the mean of its divisors is an integer number (1119921329655).

Almost surely, 2^{21435053392950} is an apocalyptic number.

21435053392950 is an abundant number, since it is smaller than the sum of its proper divisors (32321170430490).

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

21435053392950 is a wasteful number, since it uses less digits than its factorization.

21435053392950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605622081 (or 1605622076 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 51.

The spelling of 21435053392950 in words is "twenty-one trillion, four hundred thirty-five billion, fifty-three million, three hundred ninety-two thousand, nine hundred fifty".