1641474754357 has 4 divisors (see below), whose sum is σ = 1647861815916. Its totient is φ = 1635087692800.

The previous prime is 1641474754351. The next prime is 1641474754417. The reversal of 1641474754357 is 7534574741461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1117521722641 + 523953031716 = 1057129^2 + 723846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1641474754357 - 2³ = 1641474754349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641474754351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3193530394 + ... + 3193530907.

It is an arithmetic number, because the mean of its divisors is an integer number (411965453979).

Almost surely, 2^{1641474754357} is an apocalyptic number.

It is an amenable number.

1641474754357 is a deficient number, since it is larger than the sum of its proper divisors (6387061559).

1641474754357 is an equidigital number, since it uses as much as digits as its factorization.

1641474754357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387061558.

The product of its digits is 39513600, while the sum is 58.

The spelling of 1641474754357 in words is "one trillion, six hundred forty-one billion, four hundred seventy-four million, seven hundred fifty-four thousand, three hundred fifty-seven".