20867468734 has 16 divisors (see below), whose sum is σ = 35774695008. Its totient is φ = 8942728032.

The previous prime is 20867468659. The next prime is 20867468747. The reversal of 20867468734 is 43786476802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417592 + ... + 464884.

It is an arithmetic number, because the mean of its divisors is an integer number (2235918438).

Almost surely, 2^20867468734 is an apocalyptic number.

20867468734 is a deficient number, since it is larger than the sum of its proper divisors (14907226274).

20867468734 is a wasteful number, since it uses less digits than its factorization.

20867468734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78819.

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 20867468734 in words is "twenty billion, eight hundred sixty-seven million, four hundred sixty-eight thousand, seven hundred thirty-four".