7842039634 has 32 divisors (see below), whose sum is σ = 14053798080. Its totient is φ = 3234590400.

The previous prime is 7842039581. The next prime is 7842039641. The reversal of 7842039634 is 4369302487.

It is a super-2 number, since 2×7842039634² (a number of 21 digits) contains 22 as substring.

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, 215497 + ... + 249244.

It is an arithmetic number, because the mean of its divisors is an integer number (439181190).

Almost surely, 2^7842039634 is an apocalyptic number.

7842039634 is a deficient number, since it is larger than the sum of its proper divisors (6211758446).

7842039634 is a wasteful number, since it uses less digits than its factorization.

7842039634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464826.

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 7842039634 is about 88555.2913946987. The cubic root of 7842039634 is about 1986.7490360363.

The spelling of 7842039634 in words is "seven billion, eight hundred forty-two million, thirty-nine thousand, six hundred thirty-four".