1872155593051 has 2 divisors, whose sum is σ = 1872155593052. Its totient is φ = 1872155593050.

The previous prime is 1872155593019. The next prime is 1872155593069. The reversal of 1872155593051 is 1503955512781.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1872155593051 - 2⁵ = 1872155593019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1872155593051.

It is not a weakly prime, because it can be changed into another prime (1872155593751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936077796525 + 936077796526.

It is an arithmetic number, because the mean of its divisors is an integer number (936077796526).

Almost surely, 2^{1872155593051} is an apocalyptic number.

1872155593051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872155593051 is an equidigital number, since it uses as much as digits as its factorization.

1872155593051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890000, while the sum is 52.

The spelling of 1872155593051 in words is "one trillion, eight hundred seventy-two billion, one hundred fifty-five million, five hundred ninety-three thousand, fifty-one".