21034662377048 has 16 divisors (see below), whose sum is σ = 39701183958960. Its totient is φ = 10447679988000.

The previous prime is 21034662377039. The next prime is 21034662377087. The reversal of 21034662377048 is 84077326643012.

It is a happy number.

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, 8706398783 + ... + 8706401198.

It is an arithmetic number, because the mean of its divisors is an integer number (2481323997435).

Almost surely, 2^{21034662377048} is an apocalyptic number.

It is an amenable number.

21034662377048 is a deficient number, since it is larger than the sum of its proper divisors (18666521581912).

21034662377048 is a wasteful number, since it uses less digits than its factorization.

21034662377048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17412800138 (or 17412800134 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 21034662377048 in words is "twenty-one trillion, thirty-four billion, six hundred sixty-two million, three hundred seventy-seven thousand, forty-eight".