29772419841 has 12 divisors (see below), whose sum is σ = 43007141268. Its totient is φ = 19847109984.

The previous prime is 29772419837. The next prime is 29772419947. The reversal of 29772419841 is 14891427792.

It can be written as a sum of positive squares in 2 ways, for example, as 19466109441 + 10306310400 = 139521^2 + 101520^2 .

It is not a de Polignac number, because 29772419841 - 2² = 29772419837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29772419041) 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, 80851 + ... + 257063.

It is an arithmetic number, because the mean of its divisors is an integer number (3583928439).

Almost surely, 2^29772419841 is an apocalyptic number.

It is an amenable number.

29772419841 is a deficient number, since it is larger than the sum of its proper divisors (13234721427).

29772419841 is a wasteful number, since it uses less digits than its factorization.

29772419841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194992 (or 194989 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The spelling of 29772419841 in words is "twenty-nine billion, seven hundred seventy-two million, four hundred nineteen thousand, eight hundred forty-one".