1962512404609 has 9 divisors (see below), whose sum is σ = 2009275293153. Its totient is φ = 1916813743572.

The previous prime is 1962512404607. The next prime is 1962512404649. The reversal of 1962512404609 is 9064042152691.

It is a happy number.

The square root of 1962512404609 is 1400897.

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

It is not a de Polignac number, because 1962512404609 - 2¹ = 1962512404607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1962512404607) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 60222282 + ... + 60254860.

Almost surely, 2^{1962512404609} is an apocalyptic number.

1962512404609 is the 1400897-th square number.

1962512404609 is the 700449-th centered octagonal number.

It is an amenable number.

1962512404609 is a deficient number, since it is larger than the sum of its proper divisors (46762888544).

1962512404609 is an frugal number, since it uses more digits than its factorization.

1962512404609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65244 (or 32622 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

Multiplying 1962512404609 by its sum of digits (49), we get a square (96163107825841 = 9806279²).

The spelling of 1962512404609 in words is "one trillion, nine hundred sixty-two billion, five hundred twelve million, four hundred four thousand, six hundred nine".