148397986868 has 6 divisors (see below), whose sum is σ = 259696477026. Its totient is φ = 74198993432.

The previous prime is 148397986853. The next prime is 148397986871. The reversal of 148397986868 is 868689793841.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 140244258064 + 8153728804 = 374492^2 + 90298^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18549748355 + ... + 18549748362.

It is an arithmetic number, because the mean of its divisors is an integer number (43282746171).

Almost surely, 2^148397986868 is an apocalyptic number.

It is an amenable number.

148397986868 is a deficient number, since it is larger than the sum of its proper divisors (111298490158).

148397986868 is a wasteful number, since it uses less digits than its factorization.

148397986868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37099496721 (or 37099496719 counting only the distinct ones).

The product of its digits is 1003290624, while the sum is 77.

The spelling of 148397986868 in words is "one hundred forty-eight billion, three hundred ninety-seven million, nine hundred eighty-six thousand, eight hundred sixty-eight".