21502992492070 has 8 divisors (see below), whose sum is σ = 38705386485744. Its totient is φ = 8601196996824.

The previous prime is 21502992492067. The next prime is 21502992492109. The reversal of 21502992492070 is 7029429920512.

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

It is a super-2 number, since 2×21502992492070² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21502992491999 and 21502992492017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075149624594 + ... + 1075149624613.

It is an arithmetic number, because the mean of its divisors is an integer number (4838173310718).

Almost surely, 2^{21502992492070} is an apocalyptic number.

21502992492070 is a deficient number, since it is larger than the sum of its proper divisors (17202393993674).

21502992492070 is a wasteful number, since it uses less digits than its factorization.

21502992492070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150299249214.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 21502992492070 in words is "twenty-one trillion, five hundred two billion, nine hundred ninety-two million, four hundred ninety-two thousand, seventy".