1420747161858 has 20 divisors (see below), whose sum is σ = 3183526048230. Its totient is φ = 473582387232.

The previous prime is 1420747161857. The next prime is 1420747161887. The reversal of 1420747161858 is 8581617470241.

It is a happy number.

1420747161858 is a `hidden beast` number, since 1 + 420 + 7 + 4 + 7 + 161 + 8 + 58 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1320538827609 + 100208334249 = 1149147^2 + 316557^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1420747161857) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4385021943 + ... + 4385022266.

Almost surely, 2^{1420747161858} is an apocalyptic number.

1420747161858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1420747161858 is an abundant number, since it is smaller than the sum of its proper divisors (1762778886372).

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

1420747161858 is an equidigital number, since it uses as much as digits as its factorization.

1420747161858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770044223 (or 8770044214 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 1420747161858 in words is "one trillion, four hundred twenty billion, seven hundred forty-seven million, one hundred sixty-one thousand, eight hundred fifty-eight".