78203781041070 has 128 divisors (see below), whose sum is σ = 197181905264640. Its totient is φ = 19812308503680.

The previous prime is 78203781041041. The next prime is 78203781041107. The reversal of 78203781041070 is 7014018730287.

It is a super-2 number, since 2×78203781041070² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70350841 + ... + 71453819.

It is an arithmetic number, because the mean of its divisors is an integer number (1540483634880).

Almost surely, 2^{78203781041070} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78203781041070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98590952632320).

78203781041070 is an abundant number, since it is smaller than the sum of its proper divisors (118978124223570).

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

78203781041070 is a wasteful number, since it uses less digits than its factorization.

78203781041070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103710.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 78203781041070 in words is "seventy-eight trillion, two hundred three billion, seven hundred eighty-one million, forty-one thousand, seventy".