1420057512500 has 108 divisors (see below), whose sum is σ = 3414231248652. Its totient is φ = 516384000000.

The previous prime is 1420057512491. The next prime is 1420057512521. The reversal of 1420057512500 is 52157500241.

It can be written as a sum of positive squares in 6 ways, for example, as 1158245183524 + 261812328976 = 1076218^2 + 511676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1043060 + ... + 1981940.

Almost surely, 2^{1420057512500} is an apocalyptic number.

1420057512500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420057512500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707115624326).

1420057512500 is an abundant number, since it is smaller than the sum of its proper divisors (1994173736152).

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

1420057512500 is an equidigital number, since it uses as much as digits as its factorization.

1420057512500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938932 (or 938899 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The spelling of 1420057512500 in words is "one trillion, four hundred twenty billion, fifty-seven million, five hundred twelve thousand, five hundred".