22772070747 has 12 divisors (see below), whose sum is σ = 33218665584. Its totient is φ = 15031069200.

The previous prime is 22772070743. The next prime is 22772070757. The reversal of 22772070747 is 74707027722.

It is not a de Polignac number, because 22772070747 - 2² = 22772070743 is a prime.

It is a super-2 number, since 2×22772070747² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22772070743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12524983 + ... + 12526800.

It is an arithmetic number, because the mean of its divisors is an integer number (2768222132).

Almost surely, 2^22772070747 is an apocalyptic number.

22772070747 is a deficient number, since it is larger than the sum of its proper divisors (10446594837).

22772070747 is a wasteful number, since it uses less digits than its factorization.

22772070747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25051890 (or 25051887 counting only the distinct ones).

The product of its (nonzero) digits is 537824, while the sum is 45.

The spelling of 22772070747 in words is "twenty-two billion, seven hundred seventy-two million, seventy thousand, seven hundred forty-seven".