612041326401961 has 9 divisors (see below), whose sum is σ = 613226778880989. Its totient is φ = 610858161297036.

The previous prime is 612041326401937. The next prime is 612041326402013. The reversal of 612041326401961 is 169104623140216.

The square root of 612041326401961 is 24739469.

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

It is not a de Polignac number, because 612041326401961 - 2⁵ = 612041326401929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612041326401361) 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, 12938718636 + ... + 12938765938.

Almost surely, 2^{612041326401961} is an apocalyptic number.

612041326401961 is the 24739469-th square number.

612041326401961 is the 12369735-th centered octagonal number.

It is an amenable number.

612041326401961 is a deficient number, since it is larger than the sum of its proper divisors (1185452479028).

612041326401961 is an frugal number, since it uses more digits than its factorization.

612041326401961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95652 (or 47826 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 612041326401961 in words is "six hundred twelve trillion, forty-one billion, three hundred twenty-six million, four hundred one thousand, nine hundred sixty-one".