30454731542 has 4 divisors (see below), whose sum is σ = 45682097316. Its totient is φ = 15227365770.

The previous prime is 30454731523. The next prime is 30454731613. The reversal of 30454731542 is 24513745403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24513745403 = 7 ⋅3501963629.

It is a junction number, because it is equal to n+sod(n) for n = 30454731496 and 30454731505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7613682884 + ... + 7613682887.

It is an arithmetic number, because the mean of its divisors is an integer number (11420524329).

Almost surely, 2^30454731542 is an apocalyptic number.

30454731542 is a deficient number, since it is larger than the sum of its proper divisors (15227365774).

30454731542 is a wasteful number, since it uses less digits than its factorization.

30454731542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15227365773.

The product of its (nonzero) digits is 201600, while the sum is 38.

The spelling of 30454731542 in words is "thirty billion, four hundred fifty-four million, seven hundred thirty-one thousand, five hundred forty-two".