22780534990 has 16 divisors (see below), whose sum is σ = 43417019952. Its totient is φ = 8576201344.

The previous prime is 22780534967. The next prime is 22780535021. The reversal of 22780534990 is 9943508722.

It is a super-2 number, since 2×22780534990² (a number of 22 digits) contains 22 as substring.

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, 67001404 + ... + 67001743.

It is an arithmetic number, because the mean of its divisors is an integer number (2713563747).

Almost surely, 2^22780534990 is an apocalyptic number.

22780534990 is a deficient number, since it is larger than the sum of its proper divisors (20636484962).

22780534990 is a wasteful number, since it uses less digits than its factorization.

22780534990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134003171.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 22780534990 in words is "twenty-two billion, seven hundred eighty million, five hundred thirty-four thousand, nine hundred ninety".