191629001418 has 16 divisors (see below), whose sum is σ = 383355745056. Its totient is φ = 63860043440.

The previous prime is 191629001413. The next prime is 191629001419. The reversal of 191629001418 is 814100926191.

It is a self number, because there is not a number n which added to its sum of digits gives 191629001418.

It is not an unprimeable number, because it can be changed into a prime (191629001413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047093 + ... + 4094168.

It is an arithmetic number, because the mean of its divisors is an integer number (23959734066).

Almost surely, 2^191629001418 is an apocalyptic number.

191629001418 is an abundant number, since it is smaller than the sum of its proper divisors (191726743638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191629001418 is a wasteful number, since it uses less digits than its factorization.

191629001418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8145189.

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 191629001418 in words is "one hundred ninety-one billion, six hundred twenty-nine million, one thousand, four hundred eighteen".