7941156545440 has 48 divisors (see below), whose sum is σ = 18859207449600. Its totient is φ = 3159831911680.

The previous prime is 7941156545417. The next prime is 7941156545467. The reversal of 7941156545440 is 445456511497.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129896740 + ... + 129957859.

It is an arithmetic number, because the mean of its divisors is an integer number (392900155200).

Almost surely, 2^{7941156545440} is an apocalyptic number.

It is an amenable number.

7941156545440 is an abundant number, since it is smaller than the sum of its proper divisors (10918050904160).

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

7941156545440 is a wasteful number, since it uses less digits than its factorization.

7941156545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259854805 (or 259854797 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 7941156545440 in words is "seven trillion, nine hundred forty-one billion, one hundred fifty-six million, five hundred forty-five thousand, four hundred forty".