7540662654 has 128 divisors (see below), whose sum is σ = 20238336000. Its totient is φ = 2034530784.

The previous prime is 7540662643. The next prime is 7540662659. The reversal of 7540662654 is 4562660457.

It is a super-2 number, since 2×7540662654² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540662659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 681337 + ... + 692315.

It is an arithmetic number, because the mean of its divisors is an integer number (158112000).

Almost surely, 2^7540662654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7540662654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10119168000).

7540662654 is an abundant number, since it is smaller than the sum of its proper divisors (12697673346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7540662654 is a wasteful number, since it uses less digits than its factorization.

7540662654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099 (or 11093 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The square root of 7540662654 is about 86836.9889735935. The cubic root of 7540662654 is about 1960.9649779388.

The spelling of 7540662654 in words is "seven billion, five hundred forty million, six hundred sixty-two thousand, six hundred fifty-four".