148208047638 has 32 divisors (see below), whose sum is σ = 340839557376. Its totient is φ = 42085368288.

The previous prime is 148208047607. The next prime is 148208047639. The reversal of 148208047638 is 836740802841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148208047639) 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, 10817581 + ... + 10831272.

It is an arithmetic number, because the mean of its divisors is an integer number (10651236168).

Almost surely, 2^148208047638 is an apocalyptic number.

148208047638 is an abundant number, since it is smaller than the sum of its proper divisors (192631509738).

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

148208047638 is a wasteful number, since it uses less digits than its factorization.

148208047638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21649028.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 148208047638 in words is "one hundred forty-eight billion, two hundred eight million, forty-seven thousand, six hundred thirty-eight".