127788311039040 has 84 divisors (see below), whose sum is σ = 439538544854604. Its totient is φ = 34076882942976.

The previous prime is 127788311039029. The next prime is 127788311039069. The reversal of 127788311039040 is 40930113887721.

127788311039040 is a `hidden beast` number, since 1 + 27 + 7 + 8 + 83 + 110 + 390 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 73400753995776 + 54387557043264 = 8567424^2 + 7374792^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22185467787 + ... + 22185473546.

Almost surely, 2^{127788311039040} is an apocalyptic number.

127788311039040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127788311039040 is an abundant number, since it is smaller than the sum of its proper divisors (311750233815564).

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

127788311039040 is a wasteful number, since it uses less digits than its factorization.

127788311039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44370941356 (or 44370941343 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 127788311039040 in words is "one hundred twenty-seven trillion, seven hundred eighty-eight billion, three hundred eleven million, thirty-nine thousand, forty".