949778888356 has 9 divisors (see below), whose sum is σ = 1662116465611. Its totient is φ = 474888469612.

The previous prime is 949778888353. The next prime is 949778888423. The reversal of 949778888356 is 653888877949.

The square root of 949778888356 is 974566.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×949778888356² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 949778888356.

It is not an unprimeable number, because it can be changed into a prime (949778888351) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1705491 + ... + 2192773.

Almost surely, 2^949778888356 is an apocalyptic number.

949778888356 is the 974566-th square number.

It is an amenable number.

949778888356 is a deficient number, since it is larger than the sum of its proper divisors (712337577255).

949778888356 is an frugal number, since it uses more digits than its factorization.

949778888356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974570 (or 487285 counting only the distinct ones).

The product of its digits is 5852528640, while the sum is 82.

The spelling of 949778888356 in words is "nine hundred forty-nine billion, seven hundred seventy-eight million, eight hundred eighty-eight thousand, three hundred fifty-six".