1940164458427 has 8 divisors (see below), whose sum is σ = 2089420737264. Its totient is φ = 1790910016608.

The previous prime is 1940164458413. The next prime is 1940164458461. The reversal of 1940164458427 is 7248544610491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1940164458427 is a prime.

It is a super-2 number, since 2×1940164458427² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1940164453427) 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, 2388213 + ... + 3095785.

It is an arithmetic number, because the mean of its divisors is an integer number (261177592158).

Almost surely, 2^{1940164458427} is an apocalyptic number.

1940164458427 is a deficient number, since it is larger than the sum of its proper divisors (149256278837).

1940164458427 is a wasteful number, since it uses less digits than its factorization.

1940164458427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918509.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 1940164458427 in words is "one trillion, nine hundred forty billion, one hundred sixty-four million, four hundred fifty-eight thousand, four hundred twenty-seven".