7402002061 has 2 divisors, whose sum is σ = 7402002062. Its totient is φ = 7402002060.

The previous prime is 7402002043. The next prime is 7402002067. The reversal of 7402002061 is 1602002047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6484275625 + 917726436 = 80525^2 + 30294^2 .

It is a cyclic number.

It is not a de Polignac number, because 7402002061 - 2⁹ = 7402001549 is a prime.

It is a super-2 number, since 2×7402002061² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7402002067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3701001030 + 3701001031.

It is an arithmetic number, because the mean of its divisors is an integer number (3701001031).

Almost surely, 2^7402002061 is an apocalyptic number.

It is an amenable number.

7402002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7402002061 is an equidigital number, since it uses as much as digits as its factorization.

7402002061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 7402002061 is about 86034.8886266496. Note that the first 3 decimals coincide. The cubic root of 7402002061 is about 1948.8708835636.

The spelling of 7402002061 in words is "seven billion, four hundred two million, two thousand, sixty-one".