30438265511 has 4 divisors (see below), whose sum is σ = 30452471232. Its totient is φ = 30424059792.

The previous prime is 30438265471. The next prime is 30438265547. The reversal of 30438265511 is 11556283403.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30438265511 - 2¹⁰ = 30438264487 is a prime.

It is a super-2 number, since 2×30438265511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30438265591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7099646 + ... + 7103931.

It is an arithmetic number, because the mean of its divisors is an integer number (7613117808).

Almost surely, 2^30438265511 is an apocalyptic number.

30438265511 is a deficient number, since it is larger than the sum of its proper divisors (14205721).

30438265511 is a wasteful number, since it uses less digits than its factorization.

30438265511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14205720.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 30438265511 in words is "thirty billion, four hundred thirty-eight million, two hundred sixty-five thousand, five hundred eleven".