7944192000061 has 2 divisors, whose sum is σ = 7944192000062. Its totient is φ = 7944192000060.

The previous prime is 7944191999981. The next prime is 7944192000091. The reversal of 7944192000061 is 1600002914497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6056299512025 + 1887892488036 = 2460955^2 + 1374006^2 .

It is a cyclic number.

It is not a de Polignac number, because 7944192000061 - 2¹⁷ = 7944191868989 is a prime.

It is a super-2 number, since 2×7944192000061² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7944191999981 and 7944192000017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7944192000091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972096000030 + 3972096000031.

It is an arithmetic number, because the mean of its divisors is an integer number (3972096000031).

Almost surely, 2^{7944192000061} is an apocalyptic number.

It is an amenable number.

7944192000061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7944192000061 is an equidigital number, since it uses as much as digits as its factorization.

7944192000061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 7944192000061 in words is "seven trillion, nine hundred forty-four billion, one hundred ninety-two million, sixty-one", and thus it is an aban number.