21737064264674 has 32 divisors (see below), whose sum is σ = 37152605750400. Its totient is φ = 9441640771200.

The previous prime is 21737064264637. The next prime is 21737064264677. The reversal of 21737064264674 is 47646246073712.

It is not an unprimeable number, because it can be changed into a prime (21737064264677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20520899 + ... + 21554150.

It is an arithmetic number, because the mean of its divisors is an integer number (1161018929700).

Almost surely, 2^{21737064264674} is an apocalyptic number.

21737064264674 is a deficient number, since it is larger than the sum of its proper divisors (15415541485726).

21737064264674 is a wasteful number, since it uses less digits than its factorization.

21737064264674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42076106.

The product of its (nonzero) digits is 56899584, while the sum is 59.

The spelling of 21737064264674 in words is "twenty-one trillion, seven hundred thirty-seven billion, sixty-four million, two hundred sixty-four thousand, six hundred seventy-four".