1019632788242 has 4 divisors (see below), whose sum is σ = 1529449182366. Its totient is φ = 509816394120.

The previous prime is 1019632788199. The next prime is 1019632788319. The reversal of 1019632788242 is 2428872369101.

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

It can be written as a sum of positive squares in only one way, i.e., 596340717361 + 423292070881 = 772231^2 + 650609^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254908197059 + ... + 254908197062.

Almost surely, 2^{1019632788242} is an apocalyptic number.

1019632788242 is a deficient number, since it is larger than the sum of its proper divisors (509816394124).

1019632788242 is an equidigital number, since it uses as much as digits as its factorization.

1019632788242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509816394123.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 1019632788242 in words is "one trillion, nineteen billion, six hundred thirty-two million, seven hundred eighty-eight thousand, two hundred forty-two".