34213099981 has 12 divisors (see below), whose sum is σ = 36369822132. Its totient is φ = 32177704448.

The previous prime is 34213099967. The next prime is 34213100003. The reversal of 34213099981 is 18999031243.

It can be written as a sum of positive squares in 6 ways, for example, as 11263576900 + 22949523081 = 106130^2 + 151491^2 .

It is not a de Polignac number, because 34213099981 - 2⁷ = 34213099853 is a prime.

It is a super-2 number, since 2×34213099981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34213099901) 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, 372831 + ... + 455443.

It is an arithmetic number, because the mean of its divisors is an integer number (3030818511).

Almost surely, 2^34213099981 is an apocalyptic number.

It is an amenable number.

34213099981 is a deficient number, since it is larger than the sum of its proper divisors (2156722151).

34213099981 is a wasteful number, since it uses less digits than its factorization.

34213099981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84080 (or 84063 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 34213099981 in words is "thirty-four billion, two hundred thirteen million, ninety-nine thousand, nine hundred eighty-one".