10045997658 has 12 divisors (see below), whose sum is σ = 21766328298. Its totient is φ = 3348665880.

The previous prime is 10045997627. The next prime is 10045997659. The reversal of 10045997658 is 85679954001.

It can be written as a sum of positive squares in only one way, i.e., 8218691649 + 1827306009 = 90657^2 + 42747^2 .

It is not an unprimeable number, because it can be changed into a prime (10045997659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 279055473 + ... + 279055508.

Almost surely, 2^10045997658 is an apocalyptic number.

10045997658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10045997658 is an abundant number, since it is smaller than the sum of its proper divisors (11720330640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10045997658 is a wasteful number, since it uses less digits than its factorization.

10045997658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558110989 (or 558110986 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 10045997658 in words is "ten billion, forty-five million, nine hundred ninety-seven thousand, six hundred fifty-eight".