7545997349 has 16 divisors (see below), whose sum is σ = 8727155136. Its totient is φ = 6448377600.

The previous prime is 7545997337. The next prime is 7545997391. The reversal of 7545997349 is 9437995457.

It is a cyclic number.

It is not a de Polignac number, because 7545997349 - 2¹² = 7545993253 is a prime.

It is a super-2 number, since 2×7545997349² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7545997291 and 7545997300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7545997309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126779 + ... + 176535.

It is an arithmetic number, because the mean of its divisors is an integer number (545447196).

Almost surely, 2^7545997349 is an apocalyptic number.

It is an amenable number.

7545997349 is a deficient number, since it is larger than the sum of its proper divisors (1181157787).

7545997349 is a wasteful number, since it uses less digits than its factorization.

7545997349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50596.

The product of its digits is 42865200, while the sum is 62.

The square root of 7545997349 is about 86867.7002631012. The cubic root of 7545997349 is about 1961.4273017678.

The spelling of 7545997349 in words is "seven billion, five hundred forty-five million, nine hundred ninety-seven thousand, three hundred forty-nine".