1964289908340 has 72 divisors (see below), whose sum is σ = 5994024865920. Its totient is φ = 520674043584.

The previous prime is 1964289908299. The next prime is 1964289908369. The reversal of 1964289908340 is 438099824691.

1964289908340 is a `hidden beast` number, since 1 + 9 + 6 + 4 + 289 + 9 + 0 + 8 + 340 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32642760 + ... + 32702879.

It is an arithmetic number, because the mean of its divisors is an integer number (83250345360).

Almost surely, 2^{1964289908340} is an apocalyptic number.

1964289908340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1964289908340 is an abundant number, since it is smaller than the sum of its proper divisors (4029734957580).

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

1964289908340 is a wasteful number, since it uses less digits than its factorization.

1964289908340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65345821 (or 65345816 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 1964289908340 in words is "one trillion, nine hundred sixty-four billion, two hundred eighty-nine million, nine hundred eight thousand, three hundred forty".