4078025531257 has 8 divisors (see below), whose sum is σ = 4113741183552. Its totient is φ = 4042454770800.

The previous prime is 4078025531231. The next prime is 4078025531269. The reversal of 4078025531257 is 7521355208704.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4078025531257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4078025531257.

It is not an unprimeable number, because it can be changed into a prime (4078025532257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36166423 + ... + 36279004.

It is an arithmetic number, because the mean of its divisors is an integer number (514217647944).

Almost surely, 2^{4078025531257} is an apocalyptic number.

It is an amenable number.

4078025531257 is a deficient number, since it is larger than the sum of its proper divisors (35715652295).

4078025531257 is a wasteful number, since it uses less digits than its factorization.

4078025531257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72445919.

The product of its (nonzero) digits is 2352000, while the sum is 49.

The spelling of 4078025531257 in words is "four trillion, seventy-eight billion, twenty-five million, five hundred thirty-one thousand, two hundred fifty-seven".