87070366421787 has 16 divisors (see below), whose sum is σ = 136958610163712. Its totient is φ = 48149511384960.

The previous prime is 87070366421783. The next prime is 87070366421791. The reversal of 87070366421787 is 78712466307078.

It is an interprime number because it is at equal distance from previous prime (87070366421783) and next prime (87070366421791).

It is not a de Polignac number, because 87070366421787 - 2² = 87070366421783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87070366421783) 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, 66874320718 + ... + 66874322019.

It is an arithmetic number, because the mean of its divisors is an integer number (8559913135232).

Almost surely, 2^{87070366421787} is an apocalyptic number.

87070366421787 is a deficient number, since it is larger than the sum of its proper divisors (49888243741925).

87070366421787 is a wasteful number, since it uses less digits than its factorization.

87070366421787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133748642778.

The product of its (nonzero) digits is 132765696, while the sum is 66.

The spelling of 87070366421787 in words is "eighty-seven trillion, seventy billion, three hundred sixty-six million, four hundred twenty-one thousand, seven hundred eighty-seven".