7026904990561 has 9 divisors (see below), whose sum is σ = 7039734508179. Its totient is φ = 7014098826000.

The previous prime is 7026904990517. The next prime is 7026904990597. The reversal of 7026904990561 is 1650994096207.

The square root of 7026904990561 is 2650831.

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

It can be written as a sum of positive squares in only one way, i.e., 398957720161 + 6627947270400 = 631631^2 + 2574480^2 .

It is not a de Polignac number, because 7026904990561 - 2¹⁷ = 7026904859489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7026904990496 and 7026904990505.

It is not an unprimeable number, because it can be changed into a prime (7026904960561) 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, 1672672261 + ... + 1672676461.

It is an arithmetic number, because the mean of its divisors is an integer number (782192723131).

Almost surely, 2^{7026904990561} is an apocalyptic number.

7026904990561 is the 2650831-st square number.

7026904990561 is the 1325416-th centered octagonal number.

It is an amenable number.

7026904990561 is a deficient number, since it is larger than the sum of its proper divisors (12829517618).

7026904990561 is an frugal number, since it uses more digits than its factorization.

7026904990561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9664 (or 4832 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 7026904990561 in words is "seven trillion, twenty-six billion, nine hundred four million, nine hundred ninety thousand, five hundred sixty-one".