4006406520751 has 2 divisors, whose sum is σ = 4006406520752. Its totient is φ = 4006406520750.

The previous prime is 4006406520647. The next prime is 4006406520793. The reversal of 4006406520751 is 1570256046004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4006406520751 - 2⁹ = 4006406520239 is a prime.

It is a super-2 number, since 2×4006406520751² (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 (4006406590751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003203260375 + 2003203260376.

It is an arithmetic number, because the mean of its divisors is an integer number (2003203260376).

Almost surely, 2^{4006406520751} is an apocalyptic number.

4006406520751 is a deficient number, since it is larger than the sum of its proper divisors (1).

4006406520751 is an equidigital number, since it uses as much as digits as its factorization.

4006406520751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 4006406520751 in words is "four trillion, six billion, four hundred six million, five hundred twenty thousand, seven hundred fifty-one".