22746678387 has 16 divisors (see below), whose sum is σ = 30987540480. Its totient is φ = 14837738400.

The previous prime is 22746678373. The next prime is 22746678397. The reversal of 22746678387 is 78387664722.

It is not a de Polignac number, because 22746678387 - 2⁴ = 22746678371 is a prime.

It is a super-2 number, since 2×22746678387² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22746678387.

It is not an unprimeable number, because it can be changed into a prime (22746678307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290437 + ... + 360342.

It is an arithmetic number, because the mean of its divisors is an integer number (1936721280).

Almost surely, 2^22746678387 is an apocalyptic number.

22746678387 is a deficient number, since it is larger than the sum of its proper divisors (8240862093).

22746678387 is a wasteful number, since it uses less digits than its factorization.

22746678387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651034.

The product of its digits is 37933056, while the sum is 60.

The spelling of 22746678387 in words is "twenty-two billion, seven hundred forty-six million, six hundred seventy-eight thousand, three hundred eighty-seven".