7142102838 has 48 divisors (see below), whose sum is σ = 16737804720. Its totient is φ = 2187957312.

The previous prime is 7142102809. The next prime is 7142102873. The reversal of 7142102838 is 8382012417.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13056 + ... + 120227.

It is an arithmetic number, because the mean of its divisors is an integer number (348704265).

Almost surely, 2^7142102838 is an apocalyptic number.

7142102838 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7142102838 is an abundant number, since it is smaller than the sum of its proper divisors (9595701882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7142102838 is a wasteful number, since it uses less digits than its factorization.

7142102838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133533 (or 133530 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 7142102838 is about 84510.9628273161. The cubic root of 7142102838 is about 1925.7889912884.

The spelling of 7142102838 in words is "seven billion, one hundred forty-two million, one hundred two thousand, eight hundred thirty-eight".