3651451350425 has 24 divisors (see below), whose sum is σ = 4535141874456. Its totient is φ = 2916427415040.

The previous prime is 3651451350413. The next prime is 3651451350431. The reversal of 3651451350425 is 5240531541563.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1426046765584 + 2225404584841 = 1194172^2 + 1491779^2 .

It is not a de Polignac number, because 3651451350425 - 2¹⁰ = 3651451349401 is a prime.

It is a super-2 number, since 2×3651451350425² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46814759 + ... + 46892691.

It is an arithmetic number, because the mean of its divisors is an integer number (188964244769).

Almost surely, 2^{3651451350425} is an apocalyptic number.

It is an amenable number.

3651451350425 is a deficient number, since it is larger than the sum of its proper divisors (883690524031).

3651451350425 is a wasteful number, since it uses less digits than its factorization.

3651451350425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80957 (or 80952 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 44.

Adding to 3651451350425 its reverse (5240531541563), we get a palindrome (8891982891988).

The spelling of 3651451350425 in words is "three trillion, six hundred fifty-one billion, four hundred fifty-one million, three hundred fifty thousand, four hundred twenty-five".