35490731921 has 8 divisors (see below), whose sum is σ = 39556234080. Its totient is φ = 31644986688.

The previous prime is 35490731867. The next prime is 35490731933. The reversal of 35490731921 is 12913709453.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35490731921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (35490731981) 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, 54938891 + ... + 54939536.

It is an arithmetic number, because the mean of its divisors is an integer number (4944529260).

Almost surely, 2^35490731921 is an apocalyptic number.

It is an amenable number.

35490731921 is a deficient number, since it is larger than the sum of its proper divisors (4065502159).

35490731921 is a wasteful number, since it uses less digits than its factorization.

35490731921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109878463.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 35490731921 in words is "thirty-five billion, four hundred ninety million, seven hundred thirty-one thousand, nine hundred twenty-one".