21004270390702 has 8 divisors (see below), whose sum is σ = 32274854502912. Its totient is φ = 10245985556400.

The previous prime is 21004270390699. The next prime is 21004270390711. The reversal of 21004270390702 is 20709307240012.

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

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, 128074819374 + ... + 128074819537.

It is an arithmetic number, because the mean of its divisors is an integer number (4034356812864).

Almost surely, 2^{21004270390702} is an apocalyptic number.

21004270390702 is a deficient number, since it is larger than the sum of its proper divisors (11270584112210).

21004270390702 is a wasteful number, since it uses less digits than its factorization.

21004270390702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256149638954.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 21004270390702 in words is "twenty-one trillion, four billion, two hundred seventy million, three hundred ninety thousand, seven hundred two".