10891742450 has 12 divisors (see below), whose sum is σ = 20258641050. Its totient is φ = 4356696960.

The previous prime is 10891742443. The next prime is 10891742467. The reversal of 10891742450 is 5424719801.

10891742450 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 5467567249 + 5424175201 = 73943^2 + 73649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10891742398 and 10891742407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108917375 + ... + 108917474.

Almost surely, 2^10891742450 is an apocalyptic number.

10891742450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10891742450 is a deficient number, since it is larger than the sum of its proper divisors (9366898600).

10891742450 is a wasteful number, since it uses less digits than its factorization.

10891742450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217834861 (or 217834856 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 10891742450 in words is "ten billion, eight hundred ninety-one million, seven hundred forty-two thousand, four hundred fifty".