7142748690 has 128 divisors (see below), whose sum is σ = 21485813760. Its totient is φ = 1476345600.

The previous prime is 7142748677. The next prime is 7142748709. The reversal of 7142748690 is 968472417.

It is a super-2 number, since 2×7142748690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 433116 + ... + 449304.

It is an arithmetic number, because the mean of its divisors is an integer number (167857920).

Almost surely, 2^7142748690 is an apocalyptic number.

7142748690 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7142748690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10742906880).

7142748690 is an abundant number, since it is smaller than the sum of its proper divisors (14343065070).

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

7142748690 is a wasteful number, since it uses less digits than its factorization.

7142748690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16408.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 7142748690 is about 84514.7838546606. The cubic root of 7142748690 is about 1925.8470384869.

The spelling of 7142748690 in words is "seven billion, one hundred forty-two million, seven hundred forty-eight thousand, six hundred ninety".