5291438187794 has 96 divisors (see below), whose sum is σ = 9509709182400. Its totient is φ = 2197825660800.

The previous prime is 5291438187743. The next prime is 5291438187797. The reversal of 5291438187794 is 4977818341925.

It is not an unprimeable number, because it can be changed into a prime (5291438187797) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136122749 + ... + 136161615.

It is an arithmetic number, because the mean of its divisors is an integer number (99059470650).

Almost surely, 2^{5291438187794} is an apocalyptic number.

5291438187794 is a deficient number, since it is larger than the sum of its proper divisors (4218270994606).

5291438187794 is a wasteful number, since it uses less digits than its factorization.

5291438187794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39960 (or 39949 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 68.

The spelling of 5291438187794 in words is "five trillion, two hundred ninety-one billion, four hundred thirty-eight million, one hundred eighty-seven thousand, seven hundred ninety-four".