1927230129445 has 4 divisors (see below), whose sum is σ = 2312676155340. Its totient is φ = 1541784103552.

The previous prime is 1927230129361. The next prime is 1927230129463. The reversal of 1927230129445 is 5449210327291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1023120112036 + 904110017409 = 1011494^2 + 950847^2 .

It is a cyclic number.

It is not a de Polignac number, because 1927230129445 - 2⁷ = 1927230129317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192723012940 + ... + 192723012949.

It is an arithmetic number, because the mean of its divisors is an integer number (578169038835).

Almost surely, 2^{1927230129445} is an apocalyptic number.

It is an amenable number.

1927230129445 is a deficient number, since it is larger than the sum of its proper divisors (385446025895).

1927230129445 is an equidigital number, since it uses as much as digits as its factorization.

1927230129445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385446025894.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 1927230129445 in words is "one trillion, nine hundred twenty-seven billion, two hundred thirty million, one hundred twenty-nine thousand, four hundred forty-five".