7916540091398 has 8 divisors (see below), whose sum is σ = 11874826628280. Its totient is φ = 3958264548640.

The previous prime is 7916540091391. The next prime is 7916540091443. The reversal of 7916540091398 is 8931900456197.

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

It is a self number, because there is not a number n which added to its sum of digits gives 7916540091398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916540091391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618083 + ... + 4026798.

It is an arithmetic number, because the mean of its divisors is an integer number (1484353328535).

Almost surely, 2^{7916540091398} is an apocalyptic number.

7916540091398 is a deficient number, since it is larger than the sum of its proper divisors (3958286536882).

7916540091398 is a wasteful number, since it uses less digits than its factorization.

7916540091398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497062.

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 7916540091398 in words is "seven trillion, nine hundred sixteen billion, five hundred forty million, ninety-one thousand, three hundred ninety-eight".