6749520437 has 16 divisors (see below), whose sum is σ = 7516348992. Its totient is φ = 6009294720.

The previous prime is 6749520389. The next prime is 6749520443. The reversal of 6749520437 is 7340259476.

It is not a de Polignac number, because 6749520437 - 2²⁶ = 6682411573 is a prime.

It is a super-2 number, since 2×6749520437² = 91112052258961341938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6749520391 and 6749520400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749520487) 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, 101033 + ... + 153969.

It is an arithmetic number, because the mean of its divisors is an integer number (469771812).

Almost surely, 2^6749520437 is an apocalyptic number.

6749520437 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

6749520437 is a deficient number, since it is larger than the sum of its proper divisors (766828555).

6749520437 is a wasteful number, since it uses less digits than its factorization.

6749520437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53188.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The square root of 6749520437 is about 82155.4650464593. The cubic root of 6749520437 is about 1889.8368173736.

The spelling of 6749520437 in words is "six billion, seven hundred forty-nine million, five hundred twenty thousand, four hundred thirty-seven".