4019950881 has 6 divisors (see below), whose sum is σ = 5806595730. Its totient is φ = 2679967248.

The previous prime is 4019950871. The next prime is 4019950901. The reversal of 4019950881 is 1880599104.

It can be written as a sum of positive squares in only one way, i.e., 3415233600 + 604717281 = 58440^2 + 24591^2 .

It is not a de Polignac number, because 4019950881 - 2⁶ = 4019950817 is a prime.

It is a super-2 number, since 2×4019950881² = 32320010171305352322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4019950801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 223330596 + ... + 223330613.

It is an arithmetic number, because the mean of its divisors is an integer number (967765955).

Almost surely, 2^4019950881 is an apocalyptic number.

It is an amenable number.

4019950881 is a deficient number, since it is larger than the sum of its proper divisors (1786644849).

4019950881 is a wasteful number, since it uses less digits than its factorization.

4019950881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446661215 (or 446661212 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 4019950881 is about 63403.0825827893. The cubic root of 4019950881 is about 1590.0358470618.

The spelling of 4019950881 in words is "four billion, nineteen million, nine hundred fifty thousand, eight hundred eighty-one".