7461512057 has 4 divisors (see below), whose sum is σ = 7535388516. Its totient is φ = 7387635600.

The previous prime is 7461512053. The next prime is 7461512099. The reversal of 7461512057 is 7502151647.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6638338576 + 823173481 = 81476^2 + 28691^2 .

It is a cyclic number.

It is not a de Polignac number, because 7461512057 - 2² = 7461512053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7461512057.

It is not an unprimeable number, because it can be changed into a prime (7461512053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36938078 + ... + 36938279.

It is an arithmetic number, because the mean of its divisors is an integer number (1883847129).

Almost surely, 2^7461512057 is an apocalyptic number.

It is an amenable number.

7461512057 is a deficient number, since it is larger than the sum of its proper divisors (73876459).

7461512057 is a wasteful number, since it uses less digits than its factorization.

7461512057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73876458.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 7461512057 is about 86380.0443215909. The cubic root of 7461512057 is about 1954.0797387793.

The spelling of 7461512057 in words is "seven billion, four hundred sixty-one million, five hundred twelve thousand, fifty-seven".