7940542141 has 8 divisors (see below), whose sum is σ = 9078735744. Its totient is φ = 6803306160.

The previous prime is 7940542063. The next prime is 7940542177. The reversal of 7940542141 is 1412450497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7940542141 - 2⁷ = 7940542013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7940542141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940542541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221545 + ... + 254878.

It is an arithmetic number, because the mean of its divisors is an integer number (1134841968).

Almost surely, 2^7940542141 is an apocalyptic number.

It is an amenable number.

7940542141 is a deficient number, since it is larger than the sum of its proper divisors (1138193603).

7940542141 is a wasteful number, since it uses less digits than its factorization.

7940542141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478811.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 7940542141 is about 89109.7196774852. The cubic root of 7940542141 is about 1995.0328523515.

The spelling of 7940542141 in words is "seven billion, nine hundred forty million, five hundred forty-two thousand, one hundred forty-one".