7491428166094 has 4 divisors (see below), whose sum is σ = 11237142249144. Its totient is φ = 3745714083046.

The previous prime is 7491428166077. The next prime is 7491428166097. The reversal of 7491428166094 is 4906618241947.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×7491428166094² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7491428166097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872857041522 + ... + 1872857041525.

It is an arithmetic number, because the mean of its divisors is an integer number (2809285562286).

Almost surely, 2^{7491428166094} is an apocalyptic number.

7491428166094 is a deficient number, since it is larger than the sum of its proper divisors (3745714083050).

7491428166094 is a wasteful number, since it uses less digits than its factorization.

7491428166094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745714083049.

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 7491428166094 in words is "seven trillion, four hundred ninety-one billion, four hundred twenty-eight million, one hundred sixty-six thousand, ninety-four".