61007687949015 has 48 divisors (see below), whose sum is σ = 111313106486400. Its totient is φ = 30824706188736.

The previous prime is 61007687949007. The next prime is 61007687949083. The reversal of 61007687949015 is 51094978670016.

61007687949015 is a `hidden beast` number, since 6 + 1 + 0 + 0 + 7 + 68 + 79 + 490 + 15 = 666.

It is not a de Polignac number, because 61007687949015 - 2³ = 61007687949007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222048996 + ... + 222323574.

It is an arithmetic number, because the mean of its divisors is an integer number (2319023051800).

Almost surely, 2^{61007687949015} is an apocalyptic number.

61007687949015 is a deficient number, since it is larger than the sum of its proper divisors (50305418537385).

61007687949015 is a wasteful number, since it uses less digits than its factorization.

61007687949015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534476 (or 534473 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 61007687949015 in words is "sixty-one trillion, seven billion, six hundred eighty-seven million, nine hundred forty-nine thousand, fifteen".