45778887290 has 16 divisors (see below), whose sum is σ = 82417239720. Its totient is φ = 18308167680.

The previous prime is 45778887283. The next prime is 45778887347. The reversal of 45778887290 is 9278887754.

It can be written as a sum of positive squares in 4 ways, for example, as 25852459369 + 19926427921 = 160787^2 + 141161^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366275 + ... + 475094.

Almost surely, 2^45778887290 is an apocalyptic number.

45778887290 is a deficient number, since it is larger than the sum of its proper divisors (36638352430).

45778887290 is a wasteful number, since it uses less digits than its factorization.

45778887290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846817.

The product of its (nonzero) digits is 63221760, while the sum is 65.

The spelling of 45778887290 in words is "forty-five billion, seven hundred seventy-eight million, eight hundred eighty-seven thousand, two hundred ninety".