1911626981252 has 48 divisors (see below), whose sum is σ = 3660684636672. Its totient is φ = 869548746240.

The previous prime is 1911626981227. The next prime is 1911626981267. The reversal of 1911626981252 is 2521896261191.

It is a junction number, because it is equal to n+sod(n) for n = 1911626981194 and 1911626981203.

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 15 ways as a sum of consecutive naturals, for example, 1266563 + ... + 2329685.

It is an arithmetic number, because the mean of its divisors is an integer number (76264263264).

Almost surely, 2^{1911626981252} is an apocalyptic number.

It is an amenable number.

1911626981252 is a deficient number, since it is larger than the sum of its proper divisors (1749057655420).

1911626981252 is a wasteful number, since it uses less digits than its factorization.

1911626981252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064028 (or 1064026 counting only the distinct ones).

The product of its digits is 933120, while the sum is 53.

The spelling of 1911626981252 in words is "one trillion, nine hundred eleven billion, six hundred twenty-six million, nine hundred eighty-one thousand, two hundred fifty-two".