1206385902736 has 45 divisors (see below), whose sum is σ = 2719053869619. Its totient is φ = 517009349472.

The previous prime is 1206385902707. The next prime is 1206385902751. The reversal of 1206385902736 is 6372095836021.

The square root of 1206385902736 is 1098356.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30734355 + ... + 30773581.

Almost surely, 2^{1206385902736} is an apocalyptic number.

1206385902736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1206385902736 is the 1098356-th square number.

It is an amenable number.

1206385902736 is an abundant number, since it is smaller than the sum of its proper divisors (1512667966883).

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

1206385902736 is an frugal number, since it uses more digits than its factorization.

1206385902736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78476 (or 39236 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 1206385902736 in words is "one trillion, two hundred six billion, three hundred eighty-five million, nine hundred two thousand, seven hundred thirty-six".