74537473501 has 2 divisors, whose sum is σ = 74537473502. Its totient is φ = 74537473500.

The previous prime is 74537473429. The next prime is 74537473511. The reversal of 74537473501 is 10537473547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62249751001 + 12287722500 = 249499^2 + 110850^2 .

It is an emirp because it is prime and its reverse (10537473547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74537473501 - 2²³ = 74529084893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74537473511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37268736750 + 37268736751.

It is an arithmetic number, because the mean of its divisors is an integer number (37268736751).

Almost surely, 2^74537473501 is an apocalyptic number.

It is an amenable number.

74537473501 is a deficient number, since it is larger than the sum of its proper divisors (1).

74537473501 is an equidigital number, since it uses as much as digits as its factorization.

74537473501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 46.

Adding to 74537473501 its sum of digits (46), we get a palindrome (74537473547).

The spelling of 74537473501 in words is "seventy-four billion, five hundred thirty-seven million, four hundred seventy-three thousand, five hundred one".