12754675838640 has 80 divisors (see below), whose sum is σ = 39540260127456. Its totient is φ = 3401181081600.

The previous prime is 12754675838629. The next prime is 12754675838647. The reversal of 12754675838640 is 4683857645721.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (12754675838647) 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, 12612600 + ... + 13586280.

Almost surely, 2^{12754675838640} is an apocalyptic number.

12754675838640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12754675838640 is an abundant number, since it is smaller than the sum of its proper divisors (26785584288816).

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

12754675838640 is a wasteful number, since it uses less digits than its factorization.

12754675838640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028278 (or 1028272 counting only the distinct ones).

The product of its (nonzero) digits is 270950400, while the sum is 66.

The spelling of 12754675838640 in words is "twelve trillion, seven hundred fifty-four billion, six hundred seventy-five million, eight hundred thirty-eight thousand, six hundred forty".