1420605501738 has 16 divisors (see below), whose sum is σ = 3008341062720. Its totient is φ = 445680157376.

The previous prime is 1420605501727. The next prime is 1420605501743. The reversal of 1420605501738 is 8371055060241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420605501738.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6963752358 + ... + 6963752561.

It is an arithmetic number, because the mean of its divisors is an integer number (188021316420).

Almost surely, 2^{1420605501738} is an apocalyptic number.

1420605501738 is an abundant number, since it is smaller than the sum of its proper divisors (1587735560982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420605501738 is a wasteful number, since it uses less digits than its factorization.

1420605501738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927504941.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 1420605501738 in words is "one trillion, four hundred twenty billion, six hundred five million, five hundred one thousand, seven hundred thirty-eight".