36491336428 has 12 divisors (see below), whose sum is σ = 64020697552. Its totient is φ = 18199708560.

The previous prime is 36491336381. The next prime is 36491336437. The reversal of 36491336428 is 82463319463.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11488128 + ... + 11491303.

Almost surely, 2^36491336428 is an apocalyptic number.

It is an amenable number.

36491336428 is a deficient number, since it is larger than the sum of its proper divisors (27529361124).

36491336428 is a wasteful number, since it uses less digits than its factorization.

36491336428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979832 (or 22979830 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The spelling of 36491336428 in words is "thirty-six billion, four hundred ninety-one million, three hundred thirty-six thousand, four hundred twenty-eight".