148778578944 has 132 divisors (see below), whose sum is σ = 430073782944. Its totient is φ = 49537585152.

The previous prime is 148778578943. The next prime is 148778578957. The reversal of 148778578944 is 449875877841.

148778578944 is a `hidden beast` number, since 1 + 4 + 8 + 7 + 7 + 8 + 578 + 9 + 44 = 666.

148778578944 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148778578943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8719029 + ... + 8736075.

Almost surely, 2^148778578944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148778578944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215036891472).

148778578944 is an abundant number, since it is smaller than the sum of its proper divisors (281295204000).

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

148778578944 is a wasteful number, since it uses less digits than its factorization.

148778578944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020 (or 17999 counting only the distinct ones).

The product of its digits is 505774080, while the sum is 72.

The spelling of 148778578944 in words is "one hundred forty-eight billion, seven hundred seventy-eight million, five hundred seventy-eight thousand, nine hundred forty-four".