61435562013015 has 16 divisors (see below), whose sum is σ = 99962948361600. Its totient is φ = 32210283360032.

The previous prime is 61435562012989. The next prime is 61435562013019. The reversal of 61435562013015 is 51031026553416.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61435562013015 - 2²² = 61435557818711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61435562013019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34709356185 + ... + 34709357954.

It is an arithmetic number, because the mean of its divisors is an integer number (6247684272600).

Almost surely, 2^{61435562013015} is an apocalyptic number.

61435562013015 is a deficient number, since it is larger than the sum of its proper divisors (38527386348585).

61435562013015 is a wasteful number, since it uses less digits than its factorization.

61435562013015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69418714206.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 61435562013015 in words is "sixty-one trillion, four hundred thirty-five billion, five hundred sixty-two million, thirteen thousand, fifteen".