78361501045 has 16 divisors (see below), whose sum is σ = 94367924352. Its totient is φ = 62466655680.

The previous prime is 78361501033. The next prime is 78361501157. The reversal of 78361501045 is 54010516387.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-78361501045 is a prime.

It is a super-2 number, since 2×78361501045² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78361500989 and 78361501007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3386184 + ... + 3409246.

It is an arithmetic number, because the mean of its divisors is an integer number (5897995272).

Almost surely, 2^78361501045 is an apocalyptic number.

It is an amenable number.

78361501045 is a deficient number, since it is larger than the sum of its proper divisors (16006423307).

78361501045 is a wasteful number, since it uses less digits than its factorization.

78361501045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25452.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 78361501045 in words is "seventy-eight billion, three hundred sixty-one million, five hundred one thousand, forty-five".