2078641837428 has 48 divisors (see below), whose sum is σ = 5235316959936. Its totient is φ = 638104988160.

The previous prime is 2078641837427. The next prime is 2078641837429. The reversal of 2078641837428 is 8247381468702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2078641837427) and next prime (2078641837429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078641837427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15318858 + ... + 15453953.

It is an arithmetic number, because the mean of its divisors is an integer number (109069103332).

Almost surely, 2^{2078641837428} is an apocalyptic number.

It is an amenable number.

2078641837428 is an abundant number, since it is smaller than the sum of its proper divisors (3156675122508).

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

2078641837428 is a wasteful number, since it uses less digits than its factorization.

2078641837428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30773264 (or 30773262 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 2078641837428 in words is "two trillion, seventy-eight billion, six hundred forty-one million, eight hundred thirty-seven thousand, four hundred twenty-eight".