57878757780395 has 4 divisors (see below), whose sum is σ = 69454509336480. Its totient is φ = 46303006224312.

The previous prime is 57878757780331. The next prime is 57878757780401. The reversal of 57878757780395 is 59308775787875.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57878757780395 - 2⁶ = 57878757780331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5787875778035 + ... + 5787875778044.

It is an arithmetic number, because the mean of its divisors is an integer number (17363627334120).

Almost surely, 2^{57878757780395} is an apocalyptic number.

57878757780395 is a deficient number, since it is larger than the sum of its proper divisors (11575751556085).

57878757780395 is a wasteful number, since it uses less digits than its factorization.

57878757780395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11575751556084.

The product of its (nonzero) digits is 29042496000, while the sum is 86.

Adding to 57878757780395 its sum of digits (86), we get a square (57878757780481 = 7607809²).

The spelling of 57878757780395 in words is "fifty-seven trillion, eight hundred seventy-eight billion, seven hundred fifty-seven million, seven hundred eighty thousand, three hundred ninety-five".