3479898724781 has 2 divisors, whose sum is σ = 3479898724782. Its totient is φ = 3479898724780.

The previous prime is 3479898724747. The next prime is 3479898724789. The reversal of 3479898724781 is 1874278989743.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2107334175556 + 1372564549225 = 1451666^2 + 1171565^2 .

It is a cyclic number.

It is not a de Polignac number, because 3479898724781 - 2¹⁰ = 3479898723757 is a prime.

It is a super-2 number, since 2×3479898724781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3479898724789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1739949362390 + 1739949362391.

It is an arithmetic number, because the mean of its divisors is an integer number (1739949362391).

Almost surely, 2^{3479898724781} is an apocalyptic number.

It is an amenable number.

3479898724781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3479898724781 is an equidigital number, since it uses as much as digits as its factorization.

3479898724781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1365590016, while the sum is 77.

The spelling of 3479898724781 in words is "three trillion, four hundred seventy-nine billion, eight hundred ninety-eight million, seven hundred twenty-four thousand, seven hundred eighty-one".