20277396394 has 16 divisors (see below), whose sum is σ = 31129876800. Its totient is φ = 9900868320.

The previous prime is 20277396371. The next prime is 20277396407. The reversal of 20277396394 is 49369377202.

It is a happy number.

It is a super-2 number, since 2×20277396394² (a number of 21 digits) contains 22 as substring.

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, 446979 + ... + 490249.

It is an arithmetic number, because the mean of its divisors is an integer number (1945617300).

Almost surely, 2^20277396394 is an apocalyptic number.

20277396394 is a deficient number, since it is larger than the sum of its proper divisors (10852480406).

20277396394 is a wasteful number, since it uses less digits than its factorization.

20277396394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48765.

The product of its (nonzero) digits is 3429216, while the sum is 52.

The spelling of 20277396394 in words is "twenty billion, two hundred seventy-seven million, three hundred ninety-six thousand, three hundred ninety-four".