7261954548749 has 2 divisors, whose sum is σ = 7261954548750. Its totient is φ = 7261954548748.

The previous prime is 7261954548727. The next prime is 7261954548791. The reversal of 7261954548749 is 9478454591627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6196579639849 + 1065374908900 = 2489293^2 + 1032170^2 .

It is a cyclic number.

It is not a de Polignac number, because 7261954548749 - 2³⁶ = 7193235072013 is a prime.

It is a super-4 number, since 4×7261954548749⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7261954548349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3630977274374 + 3630977274375.

It is an arithmetic number, because the mean of its divisors is an integer number (3630977274375).

Almost surely, 2^{7261954548749} is an apocalyptic number.

It is an amenable number.

7261954548749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7261954548749 is an equidigital number, since it uses as much as digits as its factorization.

7261954548749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 609638400, while the sum is 71.

The spelling of 7261954548749 in words is "seven trillion, two hundred sixty-one billion, nine hundred fifty-four million, five hundred forty-eight thousand, seven hundred forty-nine".