78213704687076 has 192 divisors, whose sum is σ = 223187992832000. Its totient is φ = 20819683860480.

The previous prime is 78213704687059. The next prime is 78213704687101. The reversal of 78213704687076 is 67078640731287.

It is a super-2 number, since 2×78213704687076² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78213704686998 and 78213704687016.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 542103435 + ... + 542247693.

Almost surely, 2^{78213704687076} is an apocalyptic number.

78213704687076 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78213704687076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111593996416000).

78213704687076 is an abundant number, since it is smaller than the sum of its proper divisors (144974288144924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78213704687076 is a wasteful number, since it uses less digits than its factorization.

78213704687076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149922 (or 149920 counting only the distinct ones).

The product of its (nonzero) digits is 132765696, while the sum is 66.

The spelling of 78213704687076 in words is "seventy-eight trillion, two hundred thirteen billion, seven hundred four million, six hundred eighty-seven thousand, seventy-six".