21062702877078 has 32 divisors (see below), whose sum is σ = 42563093450976. Its totient is φ = 6947964592128.

The previous prime is 21062702877037. The next prime is 21062702877163. The reversal of 21062702877078 is 87077820726012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5864350 + ... + 8747342.

It is an arithmetic number, because the mean of its divisors is an integer number (1330096670343).

Almost surely, 2^{21062702877078} is an apocalyptic number.

21062702877078 is an abundant number, since it is smaller than the sum of its proper divisors (21500390573898).

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

21062702877078 is a wasteful number, since it uses less digits than its factorization.

21062702877078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895648.

The product of its (nonzero) digits is 7375872, while the sum is 57.

The spelling of 21062702877078 in words is "twenty-one trillion, sixty-two billion, seven hundred two million, eight hundred seventy-seven thousand, seventy-eight".