1641426755 has 8 divisors (see below), whose sum is σ = 2085577632. Its totient is φ = 1235897728.

The previous prime is 1641426751. The next prime is 1641426757. The reversal of 1641426755 is 5576241461.

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

It is a cyclic number.

It is not a de Polignac number, because 1641426755 - 2² = 1641426751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641426751) 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, 9655367 + ... + 9655536.

It is an arithmetic number, because the mean of its divisors is an integer number (260697204).

Almost surely, 2^1641426755 is an apocalyptic number.

1641426755 is a deficient number, since it is larger than the sum of its proper divisors (444150877).

1641426755 is a wasteful number, since it uses less digits than its factorization.

1641426755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19310925.

The product of its digits is 201600, while the sum is 41.

The square root of 1641426755 is about 40514.5252347846. The cubic root of 1641426755 is about 1179.6155874606.

The spelling of 1641426755 in words is "one billion, six hundred forty-one million, four hundred twenty-six thousand, seven hundred fifty-five".