1019952545329 has 3 divisors (see below), whose sum is σ = 1019953555257. Its totient is φ = 1019951535402.

The previous prime is 1019952545281. The next prime is 1019952545371. The reversal of 1019952545329 is 9235452599101.

The square root of 1019952545329 is 1009927.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1019952545329 - 2¹⁵ = 1019952512561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1019952545329.

It is not an unprimeable number, because it can be changed into a prime (1019952545429) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 504964 + ... + 1514890.

It is an arithmetic number, because the mean of its divisors is an integer number (339984518419).

Almost surely, 2^{1019952545329} is an apocalyptic number.

1019952545329 is the 1009927-th square number.

1019952545329 is the 504964-th centered octagonal number.

It is an amenable number.

1019952545329 is a deficient number, since it is larger than the sum of its proper divisors (1009928).

1019952545329 is an frugal number, since it uses more digits than its factorization.

1019952545329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019854 (or 1009927 counting only the distinct ones).

The product of its (nonzero) digits is 4374000, while the sum is 55.

The spelling of 1019952545329 in words is "one trillion, nineteen billion, nine hundred fifty-two million, five hundred forty-five thousand, three hundred twenty-nine".