7540622487 has 6 divisors (see below), whose sum is σ = 10892010272. Its totient is φ = 5027081652.

The previous prime is 7540622483. The next prime is 7540622489. The reversal of 7540622487 is 7842260457.

It is a happy number.

7540622487 is a `hidden beast` number, since 7 + 540 + 6 + 2 + 24 + 87 = 666.

It is not a de Polignac number, because 7540622487 - 2² = 7540622483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7540622483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 418923463 + ... + 418923480.

Almost surely, 2^7540622487 is an apocalyptic number.

7540622487 is a deficient number, since it is larger than the sum of its proper divisors (3351387785).

7540622487 is a wasteful number, since it uses less digits than its factorization.

7540622487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837846949 (or 837846946 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 7540622487 is about 86836.7576951143. The cubic root of 7540622487 is about 1960.9614960953.

The spelling of 7540622487 in words is "seven billion, five hundred forty million, six hundred twenty-two thousand, four hundred eighty-seven".