30620135542 has 4 divisors (see below), whose sum is σ = 45930203316. Its totient is φ = 15310067770.

The previous prime is 30620135527. The next prime is 30620135551. The reversal of 30620135542 is 24553102603.

It is a happy number.

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

It is a super-2 number, since 2×30620135542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7655033884 + ... + 7655033887.

It is an arithmetic number, because the mean of its divisors is an integer number (11482550829).

Almost surely, 2^30620135542 is an apocalyptic number.

30620135542 is a deficient number, since it is larger than the sum of its proper divisors (15310067774).

30620135542 is a wasteful number, since it uses less digits than its factorization.

30620135542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15310067773.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 30620135542 in words is "thirty billion, six hundred twenty million, one hundred thirty-five thousand, five hundred forty-two".