21442377034476 has 96 divisors (see below), whose sum is σ = 56062461728000. Its totient is φ = 7087017970944.

The previous prime is 21442377034409. The next prime is 21442377034489. The reversal of 21442377034476 is 67443077324412.

21442377034476 is a `hidden beast` number, since 2 + 1 + 4 + 42 + 37 + 70 + 34 + 476 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10906980 + ... + 12721908.

Almost surely, 2^{21442377034476} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21442377034476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28031230864000).

21442377034476 is an abundant number, since it is smaller than the sum of its proper divisors (34620084693524).

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

21442377034476 is a wasteful number, since it uses less digits than its factorization.

21442377034476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815868 (or 1815860 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 54.

The spelling of 21442377034476 in words is "twenty-one trillion, four hundred forty-two billion, three hundred seventy-seven million, thirty-four thousand, four hundred seventy-six".