74370623157 has 12 divisors (see below), whose sum is σ = 107468273484. Its totient is φ = 49560089280.

The previous prime is 74370623153. The next prime is 74370623161. The reversal of 74370623157 is 75132607347.

74370623157 is a `hidden beast` number, since 7 + 4 + 3 + 7 + 0 + 623 + 15 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (74370623153) and next prime (74370623161).

It can be written as a sum of positive squares in 2 ways, for example, as 3917007396 + 70453615761 = 62586^2 + 265431^2 .

It is not a de Polignac number, because 74370623157 - 2² = 74370623153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74370623153) 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, 1670658 + ... + 1714595.

It is an arithmetic number, because the mean of its divisors is an integer number (8955689457).

Almost surely, 2^74370623157 is an apocalyptic number.

It is an amenable number.

74370623157 is a deficient number, since it is larger than the sum of its proper divisors (33097650327).

74370623157 is a wasteful number, since it uses less digits than its factorization.

74370623157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387700 (or 3387697 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The spelling of 74370623157 in words is "seventy-four billion, three hundred seventy million, six hundred twenty-three thousand, one hundred fifty-seven".