74374738434445 has 32 divisors (see below), whose sum is σ = 90017937100800. Its totient is φ = 58990277822016.

The previous prime is 74374738434287. The next prime is 74374738434461. The reversal of 74374738434445 is 54443483747347.

It is a de Polignac number, because none of the positive numbers 2^k-74374738434445 is a prime.

It is a super-2 number, since 2×74374738434445² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292840402 + ... + 293094268.

It is an arithmetic number, because the mean of its divisors is an integer number (2813060534400).

Almost surely, 2^{74374738434445} is an apocalyptic number.

It is an amenable number.

74374738434445 is a deficient number, since it is larger than the sum of its proper divisors (15643198666355).

74374738434445 is a wasteful number, since it uses less digits than its factorization.

74374738434445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255177.

The product of its digits is 1517322240, while the sum is 67.

The spelling of 74374738434445 in words is "seventy-four trillion, three hundred seventy-four billion, seven hundred thirty-eight million, four hundred thirty-four thousand, four hundred forty-five".