21077152102 has 8 divisors (see below), whose sum is σ = 31623030936. Its totient is φ = 10536141792.

The previous prime is 21077152093. The next prime is 21077152133. The reversal of 21077152102 is 20125177012.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206288 + ... + 1223635.

It is an arithmetic number, because the mean of its divisors is an integer number (3952878867).

Almost surely, 2^21077152102 is an apocalyptic number.

21077152102 is a deficient number, since it is larger than the sum of its proper divisors (10545878834).

21077152102 is a wasteful number, since it uses less digits than its factorization.

21077152102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2434262.

The product of its (nonzero) digits is 1960, while the sum is 28.

The spelling of 21077152102 in words is "twenty-one billion, seventy-seven million, one hundred fifty-two thousand, one hundred two".