421162506029 has 2 divisors, whose sum is σ = 421162506030. Its totient is φ = 421162506028.

The previous prime is 421162506013. The next prime is 421162506101. The reversal of 421162506029 is 920605261124.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413558317225 + 7604188804 = 643085^2 + 87202^2 .

It is a cyclic number.

It is not a de Polignac number, because 421162506029 - 2⁴ = 421162506013 is a prime.

It is a super-2 number, since 2×421162506029² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421162505983 and 421162506001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421162506329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210581253014 + 210581253015.

It is an arithmetic number, because the mean of its divisors is an integer number (210581253015).

Almost surely, 2^421162506029 is an apocalyptic number.

It is an amenable number.

421162506029 is a deficient number, since it is larger than the sum of its proper divisors (1).

421162506029 is an equidigital number, since it uses as much as digits as its factorization.

421162506029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 421162506029 in words is "four hundred twenty-one billion, one hundred sixty-two million, five hundred six thousand, twenty-nine".