2026491755401 has 9 divisors (see below), whose sum is σ = 2057286163149. Its totient is φ = 1996151655564.

The previous prime is 2026491755399. The next prime is 2026491755413. The reversal of 2026491755401 is 1045571946202.

The square root of 2026491755401 is 1423549.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2026491755401 - 2¹ = 2026491755399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2026491755201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 95367160 + ... + 95388406.

It is an arithmetic number, because the mean of its divisors is an integer number (228587351461).

Almost surely, 2^{2026491755401} is an apocalyptic number.

2026491755401 is the 1423549-th square number.

2026491755401 is the 711775-th centered octagonal number.

It is an amenable number.

2026491755401 is a deficient number, since it is larger than the sum of its proper divisors (30794407748).

2026491755401 is an frugal number, since it uses more digits than its factorization.

2026491755401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42628 (or 21314 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 2026491755401 in words is "two trillion, twenty-six billion, four hundred ninety-one million, seven hundred fifty-five thousand, four hundred one".