20822746742 has 32 divisors (see below), whose sum is σ = 36478009152. Its totient is φ = 8729570304.

The previous prime is 20822746729. The next prime is 20822746751. The reversal of 20822746742 is 24764722802.

It is a super-2 number, since 2×20822746742² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20822746693 and 20822746702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208418 + ... + 291690.

It is an arithmetic number, because the mean of its divisors is an integer number (1139937786).

Almost surely, 2^20822746742 is an apocalyptic number.

20822746742 is a deficient number, since it is larger than the sum of its proper divisors (15655262410).

20822746742 is a wasteful number, since it uses less digits than its factorization.

20822746742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83672.

The product of its (nonzero) digits is 602112, while the sum is 44.

The spelling of 20822746742 in words is "twenty billion, eight hundred twenty-two million, seven hundred forty-six thousand, seven hundred forty-two".