78357483685511 has 8 divisors (see below), whose sum is σ = 80268826705200. Its totient is φ = 76446149469760.

The previous prime is 78357483685501. The next prime is 78357483685513. The reversal of 78357483685511 is 11558638475387.

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

It is a cyclic number.

It is not a de Polignac number, because 78357483685511 - 2¹⁸ = 78357483423367 is a prime.

It is a super-2 number, since 2×78357483685511² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78357483685513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18065105 + ... + 21978693.

It is an arithmetic number, because the mean of its divisors is an integer number (10033603338150).

Almost surely, 2^{78357483685511} is an apocalyptic number.

78357483685511 is a deficient number, since it is larger than the sum of its proper divisors (1911343019689).

78357483685511 is a wasteful number, since it uses less digits than its factorization.

78357483685511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401969.

The product of its digits is 677376000, while the sum is 71.

The spelling of 78357483685511 in words is "seventy-eight trillion, three hundred fifty-seven billion, four hundred eighty-three million, six hundred eighty-five thousand, five hundred eleven".