7491166242 has 32 divisors (see below), whose sum is σ = 17125527552. Its totient is φ = 2139975504.

The previous prime is 7491166169. The next prime is 7491166259. The reversal of 7491166242 is 2426611947.

7491166242 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×7491166242² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7491166194 and 7491166203.

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, 337293 + ... + 358815.

It is an arithmetic number, because the mean of its divisors is an integer number (535172736).

Almost surely, 2^7491166242 is an apocalyptic number.

7491166242 is an abundant number, since it is smaller than the sum of its proper divisors (9634361310).

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

7491166242 is a wasteful number, since it uses less digits than its factorization.

7491166242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29822.

The product of its digits is 145152, while the sum is 42.

The square root of 7491166242 is about 86551.5236261038. The cubic root of 7491166242 is about 1956.6650076974.

The spelling of 7491166242 in words is "seven billion, four hundred ninety-one million, one hundred sixty-six thousand, two hundred forty-two".