3948773965149 has 48 divisors (see below), whose sum is σ = 5753741309952. Its totient is φ = 2407666270464.

The previous prime is 3948773965127. The next prime is 3948773965183. The reversal of 3948773965149 is 9415693778493.

It is not a de Polignac number, because 3948773965149 - 2⁵ = 3948773965117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948773965189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48701967 + ... + 48782979.

It is an arithmetic number, because the mean of its divisors is an integer number (119869610624).

Almost surely, 2^{3948773965149} is an apocalyptic number.

3948773965149 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3948773965149 is a deficient number, since it is larger than the sum of its proper divisors (1804967344803).

3948773965149 is a wasteful number, since it uses less digits than its factorization.

3948773965149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81926 (or 81913 counting only the distinct ones).

The product of its digits is 1234517760, while the sum is 75.

The spelling of 3948773965149 in words is "three trillion, nine hundred forty-eight billion, seven hundred seventy-three million, nine hundred sixty-five thousand, one hundred forty-nine".