10490310978 has 16 divisors (see below), whose sum is σ = 23977853760. Its totient is φ = 2997231696.

The previous prime is 10490310977. The next prime is 10490311001. The reversal of 10490310978 is 87901309401.

It is a happy number.

It is a super-2 number, since 2×10490310978² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 249769309 = 10490310978 / (1 + 0 + 4 + 9 + 0 + 3 + 1 + 0 + 9 + 7 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10490310977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124884613 + ... + 124884696.

It is an arithmetic number, because the mean of its divisors is an integer number (1498615860).

Almost surely, 2^10490310978 is an apocalyptic number.

10490310978 is an abundant number, since it is smaller than the sum of its proper divisors (13487542782).

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

10490310978 is a wasteful number, since it uses less digits than its factorization.

10490310978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249769321.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 10490310978 in words is "ten billion, four hundred ninety million, three hundred ten thousand, nine hundred seventy-eight".