38401225247556 has 36 divisors (see below), whose sum is σ = 97092588040812. Its totient is φ = 12797398628544.

The previous prime is 38401225247503. The next prime is 38401225247557. The reversal of 38401225247556 is 65574252210483.

38401225247556 is a `hidden beast` number, since 3 + 8 + 40 + 1 + 2 + 2 + 5 + 2 + 47 + 556 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4950803001600 + 33450422245956 = 2225040^2 + 5783634^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (38401225247557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125252571 + ... + 125558786.

It is an arithmetic number, because the mean of its divisors is an integer number (2697016334467).

Almost surely, 2^{38401225247556} is an apocalyptic number.

38401225247556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38401225247556 is an abundant number, since it is smaller than the sum of its proper divisors (58691362793256).

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

38401225247556 is a wasteful number, since it uses less digits than its factorization.

38401225247556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250815620 (or 250815615 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 54.

The spelling of 38401225247556 in words is "thirty-eight trillion, four hundred one billion, two hundred twenty-five million, two hundred forty-seven thousand, five hundred fifty-six".