1630854701540 has 24 divisors (see below), whose sum is σ = 3508326457272. Its totient is φ = 636431102720.

The previous prime is 1630854701491. The next prime is 1630854701587. The reversal of 1630854701540 is 451074580361.

It can be written as a sum of positive squares in 4 ways, for example, as 65888729344 + 1564965972196 = 256688^2 + 1250986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1630854701491 and 1630854701500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994422779 + ... + 994424418.

It is an arithmetic number, because the mean of its divisors is an integer number (146180269053).

Almost surely, 2^{1630854701540} is an apocalyptic number.

1630854701540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630854701540 is an abundant number, since it is smaller than the sum of its proper divisors (1877471755732).

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

1630854701540 is a wasteful number, since it uses less digits than its factorization.

1630854701540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988847247 (or 1988847245 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 1630854701540 in words is "one trillion, six hundred thirty billion, eight hundred fifty-four million, seven hundred one thousand, five hundred forty".