1420731223064 has 8 divisors (see below), whose sum is σ = 2663871043260. Its totient is φ = 710365611528.

The previous prime is 1420731223057. The next prime is 1420731223069. The reversal of 1420731223064 is 4603221370241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420731223069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88795701434 + ... + 88795701449.

Almost surely, 2^{1420731223064} is an apocalyptic number.

It is an amenable number.

1420731223064 is a deficient number, since it is larger than the sum of its proper divisors (1243139820196).

1420731223064 is a wasteful number, since it uses less digits than its factorization.

1420731223064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177591402889 (or 177591402885 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 1420731223064 in words is "one trillion, four hundred twenty billion, seven hundred thirty-one million, two hundred twenty-three thousand, sixty-four".