21274475195030 has 8 divisors (see below), whose sum is σ = 38294055351072. Its totient is φ = 8509790078008.

The previous prime is 21274475195021. The next prime is 21274475195033. The reversal of 21274475195030 is 3059157447212.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21274475195030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21274475195033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063723759742 + ... + 1063723759761.

It is an arithmetic number, because the mean of its divisors is an integer number (4786756918884).

Almost surely, 2^{21274475195030} is an apocalyptic number.

21274475195030 is a deficient number, since it is larger than the sum of its proper divisors (17019580156042).

21274475195030 is a wasteful number, since it uses less digits than its factorization.

21274475195030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127447519510.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 21274475195030 in words is "twenty-one trillion, two hundred seventy-four billion, four hundred seventy-five million, one hundred ninety-five thousand, thirty".