148938369640 has 64 divisors (see below), whose sum is σ = 354595968000. Its totient is φ = 56144252160.

The previous prime is 148938369599. The next prime is 148938369661. The reversal of 148938369640 is 46963839841.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367855 + ... + 658174.

It is an arithmetic number, because the mean of its divisors is an integer number (5540562000).

Almost surely, 2^148938369640 is an apocalyptic number.

148938369640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148938369640 is an abundant number, since it is smaller than the sum of its proper divisors (205657598360).

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

148938369640 is a wasteful number, since it uses less digits than its factorization.

148938369640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026250 (or 1026246 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 148938369640 in words is "one hundred forty-eight billion, nine hundred thirty-eight million, three hundred sixty-nine thousand, six hundred forty".