74215100425257 has 24 divisors (see below), whose sum is σ = 117211396336320. Its totient is φ = 44876391202080.

The previous prime is 74215100425201. The next prime is 74215100425307. The reversal of 74215100425257 is 75252400151247.

It is a happy number.

74215100425257 is a `hidden beast` number, since 7 + 4 + 2 + 15 + 100 + 4 + 2 + 525 + 7 = 666.

It is not a de Polignac number, because 74215100425257 - 2¹⁴ = 74215100408873 is a prime.

It is a super-2 number, since 2×74215100425257² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74215100425057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 853769158 + ... + 853856079.

It is an arithmetic number, because the mean of its divisors is an integer number (4883808180680).

Almost surely, 2^{74215100425257} is an apocalyptic number.

It is an amenable number.

74215100425257 is a deficient number, since it is larger than the sum of its proper divisors (42996295911063).

74215100425257 is a wasteful number, since it uses less digits than its factorization.

74215100425257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707625693 (or 1707625690 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The spelling of 74215100425257 in words is "seventy-four trillion, two hundred fifteen billion, one hundred million, four hundred twenty-five thousand, two hundred fifty-seven".