8051378855475 has 24 divisors (see below), whose sum is σ = 13311831066160. Its totient is φ = 4293998392320.

The previous prime is 8051378855467. The next prime is 8051378855477. The reversal of 8051378855475 is 5745588731508.

It is not a de Polignac number, because 8051378855475 - 2³ = 8051378855467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8051378855477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3902811 + ... + 5597739.

Almost surely, 2^{8051378855475} is an apocalyptic number.

8051378855475 is a deficient number, since it is larger than the sum of its proper divisors (5260452210685).

8051378855475 is a wasteful number, since it uses less digits than its factorization.

8051378855475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758279 (or 1758274 counting only the distinct ones).

The product of its (nonzero) digits is 188160000, while the sum is 66.

The spelling of 8051378855475 in words is "eight trillion, fifty-one billion, three hundred seventy-eight million, eight hundred fifty-five thousand, four hundred seventy-five".