30497420389 has 2 divisors, whose sum is σ = 30497420390. Its totient is φ = 30497420388.

The previous prime is 30497420383. The next prime is 30497420399. The reversal of 30497420389 is 98302479403.

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., 29340264100 + 1157156289 = 171290^2 + 34017^2 .

It is a cyclic number.

It is not a de Polignac number, because 30497420389 - 2³ = 30497420381 is a prime.

It is a super-2 number, since 2×30497420389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30497420381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15248710194 + 15248710195.

It is an arithmetic number, because the mean of its divisors is an integer number (15248710195).

Almost surely, 2^30497420389 is an apocalyptic number.

It is an amenable number.

30497420389 is a deficient number, since it is larger than the sum of its proper divisors (1).

30497420389 is an equidigital number, since it uses as much as digits as its factorization.

30497420389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 30497420389 in words is "thirty billion, four hundred ninety-seven million, four hundred twenty thousand, three hundred eighty-nine".