61570513348 has 6 divisors (see below), whose sum is σ = 107748398366. Its totient is φ = 30785256672.

The previous prime is 61570513339. The next prime is 61570513349. The reversal of 61570513348 is 84331507516.

It can be written as a sum of positive squares in only one way, i.e., 59888857284 + 1681656064 = 244722^2 + 41008^2 .

It is a super-2 number, since 2×61570513348² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61570513349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7696314165 + ... + 7696314172.

Almost surely, 2^61570513348 is an apocalyptic number.

It is an amenable number.

61570513348 is a deficient number, since it is larger than the sum of its proper divisors (46177885018).

61570513348 is a wasteful number, since it uses less digits than its factorization.

61570513348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392628341 (or 15392628339 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 61570513348 in words is "sixty-one billion, five hundred seventy million, five hundred thirteen thousand, three hundred forty-eight".