30729143434 has 32 divisors (see below), whose sum is σ = 50703916032. Its totient is φ = 13851318000.

The previous prime is 30729143329. The next prime is 30729143443. The reversal of 30729143434 is 43434192703.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5377839 + ... + 5383549.

It is an arithmetic number, because the mean of its divisors is an integer number (1584497376).

Almost surely, 2^30729143434 is an apocalyptic number.

30729143434 is a deficient number, since it is larger than the sum of its proper divisors (19974772598).

30729143434 is a wasteful number, since it uses less digits than its factorization.

30729143434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7722.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 30729143434 in words is "thirty billion, seven hundred twenty-nine million, one hundred forty-three thousand, four hundred thirty-four".