65745000421 has 4 divisors (see below), whose sum is σ = 66726269152. Its totient is φ = 64763731692.

The previous prime is 65745000367. The next prime is 65745000427. The reversal of 65745000421 is 12400054756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65745000421 - 2⁹ = 65744999909 is a prime.

It is a pancake number, because a pancake can be divided into 65745000421 parts by 362615 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65745000427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490634265 + ... + 490634398.

It is an arithmetic number, because the mean of its divisors is an integer number (16681567288).

Almost surely, 2^65745000421 is an apocalyptic number.

It is an amenable number.

65745000421 is a deficient number, since it is larger than the sum of its proper divisors (981268731).

65745000421 is an equidigital number, since it uses as much as digits as its factorization.

65745000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981268730.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 65745000421 in words is "sixty-five billion, seven hundred forty-five million, four hundred twenty-one", and thus it is an aban number.