34725643981 has 8 divisors (see below), whose sum is σ = 39724655360. Its totient is φ = 29736183888.

The previous prime is 34725643973. The next prime is 34725643993. The reversal of 34725643981 is 18934652743.

It is a happy number.

34725643981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34725643981 - 2³ = 34725643973 is a prime.

It is a super-2 number, since 2×34725643981² (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 (34725646981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380026 + ... + 2394571.

It is an arithmetic number, because the mean of its divisors is an integer number (4965581920).

Almost surely, 2^34725643981 is an apocalyptic number.

It is an amenable number.

34725643981 is a deficient number, since it is larger than the sum of its proper divisors (4999011379).

34725643981 is a wasteful number, since it uses less digits than its factorization.

34725643981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775643.

The product of its digits is 4354560, while the sum is 52.

The spelling of 34725643981 in words is "thirty-four billion, seven hundred twenty-five million, six hundred forty-three thousand, nine hundred eighty-one".