145878437851 has 8 divisors (see below), whose sum is σ = 147441491424. Its totient is φ = 144320158080.

The previous prime is 145878437849. The next prime is 145878437857. The reversal of 145878437851 is 158734878541.

It is a happy number.

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 145878437851 - 2¹ = 145878437849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145878437851.

It is not an unprimeable number, because it can be changed into a prime (145878437857) 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, 1131991 + ... + 1254256.

It is an arithmetic number, because the mean of its divisors is an integer number (18430186428).

Almost surely, 2^145878437851 is an apocalyptic number.

145878437851 is a deficient number, since it is larger than the sum of its proper divisors (1563053573).

145878437851 is a wasteful number, since it uses less digits than its factorization.

145878437851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386901.

The product of its digits is 30105600, while the sum is 61.

The spelling of 145878437851 in words is "one hundred forty-five billion, eight hundred seventy-eight million, four hundred thirty-seven thousand, eight hundred fifty-one".