1964052539450 has 24 divisors (see below), whose sum is σ = 3699379980480. Its totient is φ = 775676444400.

The previous prime is 1964052539443. The next prime is 1964052539459. The reversal of 1964052539450 is 549352504691.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1964052539392 and 1964052539401.

It is not an unprimeable number, because it can be changed into a prime (1964052539459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248610296 + ... + 248618195.

It is an arithmetic number, because the mean of its divisors is an integer number (154140832520).

Almost surely, 2^{1964052539450} is an apocalyptic number.

1964052539450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1964052539450 is a deficient number, since it is larger than the sum of its proper divisors (1735327441030).

1964052539450 is a wasteful number, since it uses less digits than its factorization.

1964052539450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497228582 (or 497228577 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 1964052539450 in words is "one trillion, nine hundred sixty-four billion, fifty-two million, five hundred thirty-nine thousand, four hundred fifty".