1890847729436 has 12 divisors (see below), whose sum is σ = 3312405439728. Its totient is φ = 944446175232.

The previous prime is 1890847729429. The next prime is 1890847729453. The reversal of 1890847729436 is 6349277480981.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 244418021 + ... + 244425756.

It is an arithmetic number, because the mean of its divisors is an integer number (276033786644).

Almost surely, 2^{1890847729436} is an apocalyptic number.

It is an amenable number.

1890847729436 is a deficient number, since it is larger than the sum of its proper divisors (1421557710292).

1890847729436 is a wasteful number, since it uses less digits than its factorization.

1890847729436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488844748 (or 488844746 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 1890847729436 in words is "one trillion, eight hundred ninety billion, eight hundred forty-seven million, seven hundred twenty-nine thousand, four hundred thirty-six".