1873911046138 has 4 divisors (see below), whose sum is σ = 2810866569210. Its totient is φ = 936955523068.

The previous prime is 1873911046127. The next prime is 1873911046151. The reversal of 1873911046138 is 8316401193781.

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., 1823966394849 + 49944651289 = 1350543^2 + 223483^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 468477761533 + ... + 468477761536.

Almost surely, 2^{1873911046138} is an apocalyptic number.

1873911046138 is a deficient number, since it is larger than the sum of its proper divisors (936955523072).

1873911046138 is an equidigital number, since it uses as much as digits as its factorization.

1873911046138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936955523071.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 1873911046138 in words is "one trillion, eight hundred seventy-three billion, nine hundred eleven million, forty-six thousand, one hundred thirty-eight".